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Montana Power Company records, 1885-1979

Overview of the Collection

Creator
Montana Power Company
Title
Montana Power Company records
Dates
1885-1979 (inclusive)
Quantity
200 linear feet of shelf space
Collection Number
UPMC 6
Summary
These Montana Power Company records consist primarily of reclassification files (1930s-1940s) related to Federal Power Commission docket IT-5825 and Montana Public Service Commission docket 2421. These cases required the company to reclassify the value of corporate assets, including dams, power transmission lines, etc. In addition there is a wide variety of other records including predecessor company files dating back to 1885, subject files dating into the 1970s, published material, etc.
Repository
Montana Historical Society, Library & Archives
Montana Historical Society Research Center Archives
225 North Roberts
PO Box 201201
Helena MT
59620-1201
Telephone: 4064442681
Fax: 4064445297
mhslibrary@mt.gov
Access Restrictions

Collection is open for research.

Languages
English
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Historical Note

The Montana Power Company was incorporated on December 12, 1912, as a result of a merger of the Butte Electric and Power Company, the Madison River Power Company, the United Missouri River Power Company, and the Billings and Eastern Montana Power Company. The merger was brought about by John D. Ryan, head of the Anaconda Copper Mining Company, and John G. Morony, president of the First National Bank of Great Falls. Each of the constituent companies had been formed as the result of mergers of earlier companies.

The Butte Electric and Power Company, was formed in 1901 to take over the assets and liabilities of the Butte Lighting and Power Company, which was, in turn, the successor to several local Butte power generating plants, including the Brush Electric Light and Power Company, the Silver Bow Electric Light Company, the Butte Electric Light and Power Company, the Silver Bow Electric Light and Power Company, the Butte General Electric Company, the Phoenix Electric Company, the Butte Gas Light and Coke Company, and others. The Butte Electric and Power Company's proerties also included a hydro-electric power station on the Big Hole River from The Montana Power Transmission Company, successor to the Big Hole Improvement Company; and a majority interest in several Great Falls companies including the Great Falls Street Railway Company, the Boston and Great Falls Electric and Power Company, and the Great Falls Electric Properties.

The Missouri River Electric and Power Company, was organized in 1911, as a successor to the United Missouri River Power Company (UMRPC), which had gone into receivership. The UMRPC was itself a merger of the Missouri River Power Company, the Capital City Power Company, and the Helena Power Transmission Company. By 1912 the successor company owned most of the hydro-electric facilities on the Missouri River, including the first Canyon Ferry Dam completed in 1898 by the Helena Water and Electric Power Company; the Hauser Dam built in 1907 by the Helena Power Transmission Company; and the Holter Dam, begun around 1907 by the Capital City Power Company; and, due to financial difficulties, not completed until after the merger into Montana Power Company.

The Madison River Power Company was organized in 1905 by Butte Electric and Power Company interests to take over the Nunn power plant on the Madison River from The Power Company. The Madison River Power Company also constructed the Lower Madison Development in 1906 and transmission lines to Butte. In addition the Company acquired the Bozeman Electric Light Company, the Bozeman Street Railway Company, the Gallatin Light, Power and Railway Company, and the Livingston Water Power Company.

The Billings and Eastern Montana Power Company was organized in 1908 to take over various power developments along the Yellowstone River, including the Yegan Brothers properties, the Yellowstone River Power Company, the Billings Water Power Company, the Montana Trading Company, and the Big Timber Electric Light and Power Company.

After the organization of the Montana Power Company in 1912, the company continued to consolidate power developments around the state. In 1929 several major systems were acquired. The Missoula Public Service Company, was a merger of the Missoula Light and Water Company and the Missoula Street Railway Company both developed by William A. Clark. The various Helena properties which had been consolidated under the Helena Gas and Electric Company in 1927, also became part of Montana Power Company in 1929. A third major acquisition in 1929 was the Thompson Falls Power Company, including its predecessor the Northwestern Development Company. The Great Falls Townsite Company, the Great Falls Power Company, and the Great Falls Street Railway Company were all acquired by Montana Power Company between 1931 and 1936. The last major system acquired before World War II was the Union Electric Company of Dillon, which included the properties of its predecessors the Rife Electric Company and the Dillon Electric Light and Power Company. In addition, many local utilities were added for which there are no records in this collection.

For more comprehensive information on the history of the predecessor companies see "Corporate Growth" (Box 1, Folder 2) and Douglas F. Leighton, The Corporate history of the Montana Power Company, 1882-1913, (M.A. Thesis. Montana State University, Missoula, 1951).

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Content Description

These Montana Power Company records consist primarily of reclassification files (1930s-1940s) related to Federal Power Commission docket IT-5825 and Montana Public Service Commission docket 2421. These cases required the company to reclassify the value of corporate assets, including dams, power transmission lines, etc. In addition there is a wide variety of other records including predecessor company files dating back to 1885, subject files dating into the 1970s, published material, etc.

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Use of the Collection

Preferred Citation

Item description and date. Collection Title. Collection Number. Box and Folder numbers. Montana Historical Society Research Center, Archives, Helena, Montana.

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Administrative Information

Arrangement

Collection is organized by subgroup and arranged by folder.

Location of Collection

58:1-1,83:7-5, OVERSIZE 83:6-5, VOLUMES 121:4-1, 102:7-3, 102:8-3, 103:1-1

Acquisition Information

Acquisition information available upon request

Processing Note

This collection is large and unprocessed. It was received in very poor order. This inventory is an attempt to pull materials together by subgroup. The box numbers are those assigned by the company, but are not listed in box- number order. There is a great deal of duplicate material, scattered throughout the collection. There are also comments intended to guide a future processor.

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Detailed Description of the Collection

Detailed Description of the Collection

  • Montana Power Company

    • Description: Abstract company reports: Glacier County
      Dates: 1938
      Container: Box/Folder 20-51 / 2-3
      Location: Montana Power Company
    • Description: Abstract company reports: Pondera County
      Dates: 1938-1940
      Container: Box/Folder 20-51 / 4-5
      Location: Montana Power Company
    • Description: Abstract company reports: Toole County
      Dates: 1938-1940
      Container: Box/Folder 20-51 / 6-8
      Location: Montana Power Company
    • Description: Abstracts of title: Lewis and Clark County
      Dates: 1913
      Container: Box/Folder 20-51 / 1
      Location: Montana Power Company
    • Description: Abstracts of title: Deer Lodge County pole lines, vol. 1-2
      Dates: undated
      Container: Box/Folder 20-77 / 6-7
      Location: Montana Power Company
    • Description: Abstracts of title: Silver Bow County pole lines, vol. 1-3
      Dates: undated
      Container: Box/Folder 20-77 / 3-5
      Location: Montana Power Company
    • Description: Academy of Political Science Proceedings: Popular ownership of property: its newer forms and social consequences
      Dates: 1925
      Container: Box/Folder 20-60 / 10
      Location: Montana Power Company
    • Description: Account 301-370 (includes a file on organization, and one on franchises and consents) [several copies]
      Dates: undated
      Container: Box/Folder 20-82 / 7-25
      Location: Montana Power Company
    • Description: Account 301-370 et al. (files of planned testimony by various individuals)
      Dates: undated
      Container: Box/Folder 20-82 / 26-40
      Location: Montana Power Company
    • Description: Account 301-370 general plant classification of costs
      Dates: 1941
      Container: Box/Folder 21-8 / 2
      Location: Montana Power Company
    • Description: Account 301-379 misc. work sheets etc.
      Dates: 1939
      Container: Box/Folder 21-40 / 22-26
      Location: Montana Power Company
    • Description: Account 301-379 original cost detail
      Dates: 1939
      Container: Box/Folder 21-40 / 1-21
      Location: Montana Power Company
    • Description: Account 342, 349 Supplemental breakdown schedule: property items
      Dates: 1944
      Container: Box/Folder 21-23 / 3
      Location: Montana Power Company
    • Description: Account 344-346 transmission lines unit cost
      Dates: 1940
      Container: Box/Folder 20-92 / 1
      Location: Montana Power Company
    • Description: Account 350 supplemental breakdown
      Dates: 1940
      Container: Box/Folder 21-32 / 7
      Location: Montana Power Company
    • Description: Account 354, 355, 358, 359 inventory summaries and index
      Dates: encodinganalog="245$f"> 1940-1945
      Container: Box/Folder 21-32 / 1-6
      Location: Montana Power Company
    • Description: Account 354-355 distribution lines unit cost [deadly]
      Dates: 1940
      Container: Box/Folder 20-92 / 2
      Location: Montana Power Company
    • Description: Account 358 line transformers inventory
      Dates: 1940
      Container: Box/Folder 20-91 / 1-6
      Location: Montana Power Company
    • Description: Account 358: line transformers inventory
      Dates: 1939
      Container: Box/Folder 20-41 / 10-11
      Location: Montana Power Company
    • Description: Account 358: line transformers inventory
      Dates: 1939
      Container: Box/Folder 20-41 / 10-11
      Location: Montana Power Company
    • Description: Account 358 line transformers unit cost
      Dates: 1940
      Container: Box/Folder 20-92 / 3
      Location: Montana Power Company
    • Description: Account 360: electric meter inventory [3 vol.]
      Dates: 1939
      Container: Box/Folder 20-44 / 4-6
      Location: Montana Power Company
    • Description: Account 360: electric meter inventory
      Dates: 1939
      Container: Box/Folder 20-41 / 9
      Location: Montana Power Company
    • Description: Account 360 electric meters inventory
      Dates: 1940
      Container: Box/Folder 20-91 / 7-10
      Location: Montana Power Company
    • Description: Account 360 sheet meter unit costs
      Dates: 1937-1940
      Container: Box/Folder 21-32 / 8
      Location: Montana Power Company
    • Description: Account 363 street lighting
      Dates: 1937-1940
      Container: Box/Folder 21-32 / 9
      Location: Montana Power Company
    • Description: Account 370 general equipment inventory: land
      Dates: 1940
      Container: Box/Folder 20-90 / 5
      Location: Montana Power Company
    • Description: Account 370-379 general plant classification of costs
      Dates: 1940
      Container: Box/Folder 20-92 / 4
      Location: Montana Power Company
    • Description: Account 373 Butte Division electric andgas transportation equipment
      Dates: 1940
      Container: Box/Folder 20-90 / 6
      Location: Montana Power Company
    • Description: Account 374-377 general plant equipment
      Dates: 1940
      Container: Box/Folder 20-90 / 7-10
      Location: Montana Power Company
    • Description: Account: "Field inventory procedure as applied to overhead distribution system" [this apparently is how they did the numbered accounts]
      Dates: 1940
      Container: Box/Folder 20-92 / 6
      Location: Montana Power Company
    • Description: Accounting computer printout
      Dates: 1964
      Container: Box/Folder 20-43 / 4-5
      Location: Montana Power Company
    • Description: Accounts: simplification re transmission lines
      Dates: 1944
      Container: Box/Folder 20-60 / 9
      Location: Montana Power Company
    • Description: Account: Unit costs of plant [report: could this summarize most of the others?????]
      Dates: 1941
      Container: Box/Folder 20-92 / 5
      Location: Montana Power Company
    • Description: Acquisitions: [folder titles mostly gone; mold]
      Dates: undated
      Container: Box/Folder 20-33 / 9-17
      Location: Montana Power Company
    • Description: Acquisitions file #10-48 (one folder for each company)
      Dates: undated
      Container: Box/Folder 20-69 / 1-39
      Location: Montana Power Company
    • Description: Administrative and general expense studies
      Dates: 1913-1936
      Container: Box/Folder 20-45 / 15
      Location: Montana Power Company
    • Description: Agreement of consolidation
      Dates: 1912-1949
      Container: Box/Folder 20-17 / 18
      Location: Montana Power Company
    • Description: Agreement of consolidation
      Dates: 1912
      Container: Box/Folder 20-80 / 3
      Location: Montana Power Company
    • Description: Agreement of consolidation [duplicate]
      Dates: 1912
      Container: Box/Folder 05-31 / 9
      Location: Montana Power Company
    • Description: Agreements [misc.] temporary file
      Dates: 1906-1912?
      Container: Box/Folder 05-31 / 17
      Location: Montana Power Company
    • Description: Alphabetical file: A (includes acquisitions, American Power and Light Company, Anaconda Copper Mining Company, arc lights, automation)
      Dates: 1970s
      Container: Box/Folder 05-35 / 1-8
      Location: Montana Power Company
    • Description: Alphabetical file: B (includes Banks; Big Horn; Big Timber; Billings; Billings and Eastern Montana Power Company; Billings Traction Company; F.W. Bird; Black Eagle; Bozeman; Bridger; Butte; Butte, Anaconda and Pacific Railway; Butte Electric and Power Company; Butte General Electric Company; Butte Lighting Company; Byllesley)
      Dates: 1970s
      Container: Box/Folder 05-35 / 9-39
      Location: Montana Power Company
    • Description: Alphabetical file: C (includes Canyon Ferry, Citizens Electric Co., W.A. Clark, H.H. Cochrane, C.A. Coffin, Frank Coleman, Colstrip, Columbus, Conrey Placer Mining Company, Contracts, Copper reclassification book [another copy])
      Dates: 1970s
      Container: Box/Folder 05-32 / 1-12
      Location: Montana Power Company
    • Description: Alphabetical file: D (includes Dams, Deer Lodge, Dennison-Dutton, H.K. Dickinson, Dillon, Dredges)
      Dates: 1970s
      Container: Box/Folder 05-32 / 13-18
      Location: Montana Power Company
    • Description: Alphabetical file: E (includes Earthquake [Hebgen], electric bond, electric lighting [early], electric ranges, Electrical World clippings, employees, 1912)
      Dates: 1970s
      Container: Box/Folder 05-32 / 19-24
      Location: Montana Power Company
    • Description: Alphabetical file: F (includes federal government write-off data, Fort Benton, Fort Peck Dam and Fort Peck Indian Reservation irrigation project)
      Dates: 1970s
      Container: Box/Folder 05-32 / 25-27
      Location: Montana Power Company
    • Description: Alphabetical file: G (includes Gardiner, gas, General Electric, Paris Gibson, Gold, Great Falls, Great Falls Water Power and Townsite Company, Great Falls Electric Properties, Great Falls Power Company, Great Falls Townsite Company)
      Dates: 1970s
      Container: Box/Folder 05-32 / 25-40
      Location: Montana Power Company
    • Description: Alphabetical file: G (includes Great Northern electric railway)
      Dates: 1970s
      Container: Box/Folder 05-37 / 1
      Location: Montana Power Company
    • Description: Alphabetical file: H (includes Haganah, Harlowton, Hauser Lake, Havre, Hebgen Dam, Helena including Helena Electric Co. payrolls, history, hoists, Holter Lake, Hungry Horse Dam)
      Dates: 1970s
      Container: Box/Folder 05-37 / 2-14
      Location: Montana Power Company
    • Description: Alphabetical file: H (includes Max Hebgen)
      Dates: 1970s
      Container: Box/Folder 05-36 / 1
      Location: Montana Power Company
    • Description: Alphabetical file: I (includes S.R. Inch, insulators, industrial ads, irrigation, Iron Mountain Tunnel Co.)
      Dates: 1970s
      Container: Box/Folder 05-37 / 15-19
      Location: Montana Power Company
    • Description: Alphabetical file: K (includes Con Kelley, Kendall, Kerr Plant, Kroyer)
      Dates: 1970s
      Container: Box/Folder 05-37 / 20-23
      Location: Montana Power Company
    • Description: Alphabetical file: L (includes Lehigh, Lewistown, Libby, Livingston)
      Dates: 1970s
      Container: Box/Folder 05-37 / 24-27
      Location: Montana Power Company
    • Description: Alphabetical file: M (includes Charles T. Main, Maxville, merger, Mesa Power Company, missiles, Missoula)
      Dates: 1970s
      Container: Box/Folder 05-37 / 28-33
      Location: Montana Power Company
    • Description: Alphabetical file: M (includes Missouri River history, Missouri River Power Company, Montana Magazine articles, Montana Power Company, Montana Power Transmission Company, Montana Reservoir and Irrigation Company, Morel Line, Morony Dam, mountain sheep, Mystic Lake)
      Dates: 1970s
      Container: Box/Folder 05-36 / 2-13
      Location: Montana Power Company
    • Description: Alphabetical file: N (includes Nunn Brothers)
      Dates: 1970s
      Container: Box/Folder 05-36 / 14
      Location: Montana Power Company
    • Description: Alphabetical file: O (George W. O'Connor)
      Dates: 1970s
      Container: Box/Folder 05-36 / 15
      Location: Montana Power Company
    • Description: Alphabetical file: P (parallelling Washington Water Power Co. lines with Montana Power Co. lines, Parrot Development, payrolls, Phoenix Electric, plant accounts, population, power pool)
      Dates: 1970s
      Container: Box/Folder 05-36 / 16-22
      Location: Montana Power Company
    • Description: Anaconda Copper Mining Company freight settlements
      Dates: 1927
      Container: Box/Folder 20-98 / 21
      Location: Montana Power Company
    • Description: Analysis book, supplemental cost structures accounts 321, 341
      Dates: undated
      Container: Box/Folder 21-19 / 8
      Location: Montana Power Company
    • Description: Analysis of accounts for overhead, by E.P. Mullins
      Dates: 1940
      Container: Box/Folder 20-55 / 6
      Location: Montana Power Company
    • Description: Analysis of distribution system (Helena and Great Falls divisions)
      Dates: 1928-1939
      Container: Box/Folder 20-28 / 1-9
      Location: Montana Power Company
    • Description: Analysis of investments
      Dates: 1940
      Container: Box/Folder 20-48 / 40
      Location: Montana Power Company
    • Description: Analysis of material costs
      Dates: 1941
      Container: Box/Folder 20-90 / 1-4
      Location: Montana Power Company
    • Description: Analysis of material costs
      Dates: 1940
      Container: Box/Folder 20-91 / 1-6
      Location: Montana Power Company
    • Description: Analysis of material costs: Montana Power Company "caps-pulleys" [summary]
      Dates: 1913-1936
      Container: Box/Folder 20-68 / 6-7
      Location: Montana Power Company
    • Description: Analysis of material costs: Montana Power Company; [summary]
      Dates: 1913-1936
      Container: Box/Folder 20-68 / 5
      Location: Montana Power Company
    • Description: Analysis of material costs: Montana Power Company
      Dates: 1930-1936
      Container: Box/Folder 20-68 / 1-4
      Location: Montana Power Company
    • Description: Analysis of material costs: Montana Power Company;
      Dates: 1913-1919
      Container: Box/Folder 20-66 / 3-6
      Location: Montana Power Company
    • Description: Anti-trust case schedules
      Dates: 1948?
      Container: Box/Folder 21-50 / Vol. 1
      Location: Montana Power Company
    • Description: Balance sheet
      Dates: 1912
      Container: Box/Folder 20-08 / 100?
      Location: Montana Power Company
    • Description: Balance sheet accounts (work sheets)
      Dates: 1936-1941
      Container: Box/Folder 20-14 / 2
      Location: Montana Power Company
    • Description: Balance sheet, consolidated
      Dates: 1912-1942
      Container: Box/Folder 20-02 / 23
      Location: Montana Power Company
    • Description: Bickley, John H. index of data compiled worksheets
      Dates: undated
      Container: Box/Folder 20-02 / 5
      Location: Montana Power Company
    • Description: Bird, F.W.: material from files
      Dates: undated
      Container: Box/Folder 20-13 / 9
      Location: Montana Power Company
    • Description: Book costs: summary
      Dates: 1936-1940
      Container: Box/Folder 20-55 / 9
      Location: Montana Power Company
    • Description: Book costs: percent return, etc.
      Dates: 1913-1942
      Container: Box/Folder 20-60 / 13
      Location: Montana Power Company
    • Description: Booklet: The Montana Power Company...and Subsidiary Companies. [photos, nice] (5 copies)
      Dates: 1916
      Container: Box/Folder 05-33 / 7-11
      Location: Montana Power Company
    • Description: Broadwater-Missouri Water Users' Association vs. Montana Power Co. exhibits?
      Dates: 1939-1942?
      Container: Box/Folder 20-96 / 3
      Location: Montana Power Company
    • Description: Broadwater-Missouri Water Users' Association vs. Montana Power Co. transcript of record, vol. 1
      Dates: 1939-1942?
      Container: Box/Folder 20-32 / 15
      Location: Montana Power Company
    • Description: Brochures: ads to the people of Montana
      Dates: 1920
      Container: Box/Folder 05-31 / 11
      Location: Montana Power Company
    • Description: Brochures: letter to stockholders
      Dates: 1913
      Container: Box/Folder 05-31 / 10
      Location: Montana Power Company
    • Description: Bylaws
      Dates: 1920-1952
      Container: Box/Folder 20-17 / 17
      Location: Montana Power Company
    • Description: Callantine case (re right-of-way in Gallatin County)
      Dates: 1950s
      Container: Box/Folder 21-20 / 5
      Location: Montana Power Company
    • Description: Catalog: General Electric
      Dates: 1947
      Container: Box/Folder 21-39 / 5
      Location: Montana Power Company
    • Description: Catalog: General Electric
      Dates: 1947
      Container: Box/Folder 21-40 / 22-26
      Location: Montana Power Company
    • Description: Catalog: General Electric
      Dates: 1947
      Container: Box/Folder 21-39 / 5
      Location: Montana Power Company
    • Description: Catalog: Stearns Roger Manufacturing Co.
      Dates: 1947
      Container: Box/Folder 21-53 / 4
      Location: Montana Power Company
    • Description: Clark, W.A. properties [originals]
      Dates: 1916-1927
      Container: Box/Folder 05-34 / 6
      Location: Montana Power Company
    • Description: Clippings: Borrowed Times re Colstrip 3-4
      Dates: 1970s
      Container: Box/Folder 05-31 / 21
      Location: Montana Power Company
    • Description: Cochrane Hydro development payrolls
      Dates: 1957-1958
      Container: Volume 4-5
      Location: Montana Power Company
    • Description: Cochrane Hydro development voucher register
      Dates: 1957-1958
      Container: Volume 3
      Location: Montana Power Company
    • Description: Construction drawings used in field inventory #176-178
      Dates: undated
      Container: Box/Folder 20-35 / 1-3
      Location: Montana Power Company
    • Description: Construction drawings used in field inventory #154-159 [FOLDED, POOR CONDITION]
      Dates: undated
      Container: Box/Folder 20-78 / 1-6
      Location: Montana Power Company
    • Description: Construction drawings used in field inventory #160-167 [FOLDED, POOR CONDITION]
      Dates: undated
      Container: Box/Folder 20-52 / 1-8
      Location: Montana Power Company
    • Description: Construction drawings used in field inventory #168-175 [FOLDED, POOR CONDITION]
      Dates: undated
      Container: Box/Folder 20-21 / 1-8
      Location: Montana Power Company
    • Description: Construction drawings used in field inventory #183 [FOLDED, POOR CONDITION]
      Dates: undated
      Container: Box/Folder 20-78 / 7
      Location: Montana Power Company
    • Description: Construction work in progress #179
      Dates: 1941
      Container: Box/Folder 20-35 / 4
      Location: Montana Power Company
    • Description: Correspondence, Kirk, C.H. [photocopies]
      Dates: 1907-1943
      Container: Box/Folder 20-01 / 1
      Location: Montana Power Company
    • Description: Correspondence, misc. [originals]
      Dates: 1908-1916?
      Container: Box/Folder 21-38 / 2-11
      Location: Montana Power Company
    • Description: Correspondence, misc.
      Dates: undated
      Container: Box/Folder 20-03 / 11
      Location: Montana Power Company
    • Description: Correspondence, MPC Internal Affairs re reclassification
      Dates: undated
      Container: Box/Folder 21-25 / 10
      Location: Montana Power Company
    • Description: Correspondence, Ryan, J.D. [originals]
      Dates: 1909-1913
      Container: Box/Folder 21-38 / 12
      Location: Montana Power Company
    • Description: Correspondence, Ryan, J.D. [photocopies]
      Dates: 1908-1912
      Container: Box/Folder 20-01 / 2
      Location: Montana Power Company
    • Description: Correspondence, Ryan, J.D. [photocopies]
      Dates: 1911-1922
      Container: Box/Folder 21-38 / 1
      Location: Montana Power Company
    • Description: Correspondence: Ryan, John D. [originals! badly water damaged]
      Dates: 1902-1922
      Container: Box/Folder 05-34 / 1-4
      Location: Montana Power Company
    • Description: Correspondence: Wetmore, C.W. [originals! badly water damaged]
      Dates: 1907-1915
      Container: Box/Folder 05-34 / 5
      Location: Montana Power Company
    • Description: Cost, depreciation
      Dates: 1931
      Container: Box/Folder 20-13 / 3
      Location: Montana Power Company
    • Description: Cost reclassification--final
      Dates: undated
      Container: Box/Folder 20-13 / 2
      Location: Montana Power Company
    • Description: Cost reports [?] lots of figures, some correspondence
      Dates: 1932-
      Container: Box/Folder 21-2 / 4
      Location: Montana Power Company
    • Description: Cost sheets
      Dates: 1937-1945
      Container: Box/Folder 20-14 / 7
      Location: Montana Power Company
    • Description: Cost sheets etc. (includes Billings plant, Deer Lodge Electric Company, Great Falls Townsite Company, Great Falls Water Power and Townsite Company, Havre, Madison River, etc. etc.) [badly water damaged]
      Dates: 1939-1943?
      Container: Box/Folder 20-20 / 1-20?
      Location: Montana Power Company
    • Description: Dams: Campbell, water wheel data [mostly blueprints]
      Dates: undated
      Container: Box/Folder 20-13 / 16
      Location: Montana Power Company
    • Description: Dams information: Big Hole
      Dates: 1900-1910?
      Container: Box/Folder 20-10 / 6
      Location: Montana Power Company
    • Description: Dams information: Canyon Ferry
      Dates: undated
      Container: Box/Folder 20-10 / 7-8
      Location: Montana Power Company
    • Description: Dams information: Flint Creek
      Dates: undated
      Container: Box/Folder 20-10 / 9
      Location: Montana Power Company
    • Description: Dams information: Hauser
      Dates: undated
      Container: Box/Folder 20-10 / 10
      Location: Montana Power Company
    • Description: Dams information: Hebgen
      Dates: undated
      Container: Box/Folder 20-10 / 11
      Location: Montana Power Company
    • Description: Dams information: Holter
      Dates: undated
      Container: Box/Folder 20-10 / 12
      Location: Montana Power Company
    • Description: Dams information: Livingston
      Dates: undated
      Container: Box/Folder 20-10 / 13
      Location: Montana Power Company
    • Description: Dams information: Madison
      Dates: undated
      Container: Box/Folder 20-10 / 14
      Location: Montana Power Company
    • Description: Dams information: Mystic Lake
      Dates: undated
      Container: Box/Folder 20-10 / 15
      Location: Montana Power Company
    • Description: Dams information: Rainbow
      Dates: undated
      Container: Box/Folder 20-10 / 16-17
      Location: Montana Power Company
    • Description: Depreciation
      Dates: 1918-1941
      Container: Box/Folder 20-48 / 41
      Location: Montana Power Company
    • Description: Depreciation requirements, annual, original cost basis
      Dates: 1943
      Container: Box/Folder 20-60 / 2
      Location: Montana Power Company
    • Description: Distribution plant accounting
      Dates: 1936-1941
      Container: Box/Folder 20-35 / 5
      Location: Montana Power Company
    • Description: Distribution plant elements of cost analysis
      Dates: 1936
      Container: Box/Folder 20-35 / 6
      Location: Montana Power Company
    • Description: District Court Docket #62591 Petition of MPC
      Dates: 1977
      Container: Box/Folder 20-16 / 3
      Location: Montana Power Company
    • Description: Drawings of transmission lines: Anaconda to Billings
      Dates: n.d.
      Container: Box/Folder 20-96 / 4-7
      Location: Montana Power Company
    • Description: Early foreseen uses for electric power: published material
      Dates: undated
      Container: Box/Folder 20-13 / 10
      Location: Montana Power Company
    • Description: Electric Plant accounts
      Dates: undated
      Container: Box/Folder 20-09 / 9
      Location: Montana Power Company
    • Description: Employee material
      Dates: 1926-1946
      Container: Box/Folder 20-60 / 11
      Location: Montana Power Company
    • Description: Engineering check of cost analysis (Black Eagle, Canyon Ferry, Madison #2, Morony, Rainbow, Volta) 2 copies: includes general statement of each plant
      Dates: 1936?
      Container: Box/Folder 21-24 / 5-6
      Location: Montana Power Company
    • Description: Engineering check of cost analysis (Flint Creek, Hauser, Hebgen,Holter, Mystic Lake, Milltown, Thompson Falls) [includes general statement of each plant]
      Dates: 1936?
      Container: Box/Folder 21-23 / 6
      Location: Montana Power Company
    • Description: Engineering check of cost analysis (Flint Creek, Hauser, Hebgen,Holter, Mystic Lake, Milltown, Thompson Falls) [includes general statement of each plant]
      Dates: 1936?
      Container: Box/Folder 21-24 / 7
      Location: Montana Power Company
    • Description: Expenditure and improvement requisitions index
      Dates: 1913-1939
      Container: Box/Folder 20-45 / 14
      Location: Montana Power Company
    • Description: Flathead Hydro-Electric Development [cost reports]
      Dates: 1938
      Container: Box/Folder 21-26 / 5
      Location: Montana Power Company
    • Description: Flathead Hydro-Electric Development, Polson, analysis of operations
      Dates: 1930-1933
      Container: Box/Folder 20-26 / 18
      Location: Montana Power Company
    • Description: Flathead Hydro-Electric Development [summary of accounts]
      Dates: 1930-1938
      Container: Box/Folder 21-26 / 4
      Location: Montana Power Company
    • Description: Fort Peck Dam clippings and booklet
      Dates: undated
      Container: Box/Folder 05-33 / 6
      Location: Montana Power Company
    • Description: FPC: Classification methods and procedures (2 copies, apparently not identical, includes lots of actual financial figures, not just methods)
      Dates: undated
      Container: Box/Folder 20-36 / 8-9
      Location: Montana Power Company
    • Description: FPC: Project 5 Montana Flathead: Analysis of construction accounts, pp 1-1492; 1-2724 [3 vol., 2 copies of last]
      Dates: 1930-1933, 1936-1938
      Container: Box/Folder 20-57 / 1-4
      Location: Montana Power Company
    • Description: FPC: record of staff work [2 copies]
      Dates: 1941-1942
      Container: Box/Folder 20-60 / 5-6
      Location: Montana Power Company
    • Description: FPC: testimony by William A. Paton
      Dates: 1944
      Container: Box/Folder 20-60 / 7
      Location: Montana Power Company
    • Description: FPC docket IT-5825
      Dates: 1944
      Container: Box/Folder 20-48 / 30-31
      Location: Montana Power Company
    • Description: FPC docket IT-5825: briefs of FPC [2 printed copies] [and PSC 2421] [important]
      Dates: 1944-1945?
      Container: Box/Folder 21-25 / 1-2, 6-7
      Location: Montana Power Company
    • Description: FPC docket IT-5825: depositions of C.F. Kelley and W.D. Thornton
      Dates: 1943
      Container: Box/Folder 20-15 / 1
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits #1-420 index
      Dates: 1910s-1940s
      Container: Box/Folder 20-48 / 23
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits #2-43 (reproduction of historic documents)--often multiple copies
      Dates: undated
      Container: Box/Folder 20-24 / 14-54?
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits #1-145 (includes lots of valuable historic documents re the original cost of MPC properties, which may be available elsewhere but are pulled together here)
      Dates: 1910s-1940s
      Container: Box/Folder 20-32 / 1-14
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits #146-420 (includes lots of valuable historic documents re the original cost of MPC properties, which may available elsewhere but are pulled together here)
      Dates: 1910s-1940s
      Container: Box/Folder 20-48 / 1-22
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits #1-420 [mostly photocopies]
      Dates: 1944
      Container: Box/Folder 20-64 / 2-11
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits index [is joint FPC and PSC case]
      Dates: undated
      Container: Box/Folder 20-80 / 1
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits list and description [and PSC 2421]
      Dates: 1944-1945?
      Container: Box/Folder 21-25 / 3
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits list (handwritten) [and PSC 2421]
      Dates: 1944-1945?
      Container: Box/Folder 21-25 / 16-17
      Location: Montana Power Company
    • Description: FPC docket IT-5825: exhibits on history of early power development and formation of MPC
      Dates: undated
      Container: Box/Folder 05-31 / 6-7
      Location: Montana Power Company
    • Description: FPC Docket IT-5825: In the matter of the Montana Power Company
      Dates: 1944
      Container: Box/Folder 20-16 / 4
      Location: Montana Power Company
    • Description: FPC Docket IT-5825: In the matter of the Montana Power Company
      Dates: 1944
      Container: Box/Folder 20-23 / 1-...
      Location: Montana Power Company
    • Description: FPC Docket IT-5825: In the matter of the Montana Power Company briefs and reply briefs (4 copies each)
      Dates: 1944
      Container: Box/Folder 20-19 / 1-12
      Location: Montana Power Company
    • Description: FPC Docket IT-5825: In the matter of the Montana Power Company [various files]
      Dates: 1944
      Container: Box/Folder 20-07 / 4-...
      Location: Montana Power Company
    • Description: FPC docket IT-5825: index
      Dates: 1944
      Container: Box/Folder 20-48 / 29
      Location: Montana Power Company
    • Description: FPC docket IT-5825: opinion 120-A
      Dates: 1945
      Container: Box/Folder 20-48 / 24
      Location: Montana Power Company
    • Description: FPC docket IT-5825: opinion and order of FPC [and PSC 2421]
      Dates: 1945
      Container: Box/Folder 21-25 / 5
      Location: Montana Power Company
    • Description: FPC docket IT-5825: petition for rehearing (3 copies; 1 printed) [and PSC 2421] [important]
      Dates: 1945
      Container: Box/Folder 21-25 / 13-15
      Location: Montana Power Company
    • Description: FPC docket IT-5825: preparation of case and possible witnesses etc. (includes testimony, documents, etc.)
      Dates: 1943?
      Container: Box/Folder 20-15 / 2-20
      Location: Montana Power Company
    • Description: FPC docket IT-5825: [procedural manuals]
      Dates: undated
      Container: Box/Folder 20-48 / 25-26
      Location: Montana Power Company
    • Description: FPC docket IT-5825: reports
      Dates: undated
      Container: Box/Folder 20-49 / 37=39
      Location: Montana Power Company
    • Description: FPC docket IT-5825: testimony
      Dates: 1944
      Container: Box/Folder 20-48 / 28
      Location: Montana Power Company
    • Description: FPC docket IT-5825: testimony Vol. 1-20 [PSC 3421] [2 copies of vol. 15, 17]
      Dates: 1944
      Container: Box/Folder 20-67 / 1-20
      Location: Montana Power Company
    • Description: FPC docket IT-5825: testimony index [is also PSC 3421]
      Dates: 1944
      Container: Box/Folder 20-64 / 1
      Location: Montana Power Company
    • Description: FPC docket IT-5825: transcript and briefs (some mold)
      Dates: 1944
      Container: Box/Folder 20-34 / 1-...
      Location: Montana Power Company
    • Description: FPC docket IT-5840: Missouri River license case: index to exhibits
      Dates: undated
      Container: Box/Folder 21-31 / 15
      Location: Montana Power Company
    • Description: FPC Reevaluation files #1, 24-36 financial material
      Dates: 1920s-1940s
      Container: Box/Folder 20-02 / 6-13
      Location: Montana Power Company
    • Description: FPC Reevaluation files #2-20 [financial and tax material]

      RESTRICTED

      Dates: 1920s-1940s
      Container: Box/Folder 20-01 / 3-24
      Location: Montana Power Company
    • Description: FPC report revision re reclassification of account 100.6
      Dates: undated
      Container: Box/Folder 20-48 / 27
      Location: Montana Power Company
    • Description: FPC Uniform System of Accounts
      Dates: 1937
      Container: Box/Folder 21-25 / 3
      Location: Montana Power Company
    • Description: General Electric Company
      Dates: 1939
      Container: Box/Folder 20-13 / 6
      Location: Montana Power Company
    • Description: Government agencies: FPC vs PSC differences
      Dates: 1963-1981
      Container: Box/Folder 20-16 / 5-6
      Location: Montana Power Company
    • Description: Government agencies: FPC vs FERC historic financial statements
      Dates: 1977?
      Container: Box/Folder 20-16 / 1-2?
      Location: Montana Power Company
    • Description: Group 03: Madison River Power Company (includes historical files, minutes, lists of incorporators, accounts, acquisitions, predecessors, etc.)
      Dates: undated
      Container: Box/Folder 20-47 / 70-93
      Location: Montana Power Company
    • Description: Group 04: includes lists of officers and directors, property andplant accounts, reconciliation by Hagenah, report on "Missouri and Madison Rivers in MOntana", customer data, hydraulic vs. steam production statistics, financial stuff, United Missouri River Power Company data, Helena Water and Electric Power Company data, Helena Power Transmission Company data, Capital City Power Company data
      Dates: 1904-1912
      Container: Box/Folder 20-08 / 1-33
      Location: Montana Power Company
    • Description: Group 05: Montana Power Company, includes miscellaneous material
      Dates: 1912-1941
      Container: Box/Folder 20-56 / 1-99?
      Location: Montana Power Company
    • Description: Group 05: Montana Power Company, includes miscellaneous material [duplicate?]
      Dates: 1912-1941
      Container: Box/Folder 20-08 / 34-99?
      Location: Montana Power Company
    • Description: Group 06: Great Falls Power Company files on all the facilities and branches of the company, including historical data, operating reports, substations, Sun River line, steel tower transmission line, Cascade Branch, Benton Electric Light Company, Chinook Choteau, Dodson, Glasgow, Harlem, Hinsdale, Malta, Saco, Stockett, Valier, etc. etc. etc. (includes copies of correspondence, reports, etc.)
      Dates: 1910-
      Container: Box/Folder 20-06 / 2-81
      Location: Montana Power Company
    • Description: Group 07: Thompson Falls Power Company, includes historical data, lists of stockholders, officers, plant additions, return per KWH, lands, Northwest Development Company
      Dates: 1912-1928
      Container: Box/Folder 20-06 / 82-92
      Location: Montana Power Company
    • Description: Group 08: Deer Lodge Electric Company, includes historical data, correspondence, lists of officers & stockholders, annual report, report by Cochrane
      Dates: 1920s
      Container: Box/Folder 20-06 / 83-87
      Location: Montana Power Company
    • Description: Group 09: Missoula Public Service Company, includes list of officers and stockholders, retirement account, data on Missoula Light and Water Company, earnings, plant additions, plant account, property account, American Power and Light Company investment
      Dates: undated
      Container: Box/Folder 20-06 / 88-95
      Location: Montana Power Company
    • Description: Group 10: Helena Gas and Electric Company, list of directors and officers, minutes excerpts, retirement reservce, property account
      Dates: 1929, n.d.
      Container: Box/Folder 20-06 / 96-98
      Location: Montana Power Company
    • Description: Group 11: Missouri Reservoir and Irrigation Company, includes historical data, report on proposed Hebgen Dam, capital stock data, retirement reserve
      Dates: 1909, n.d.
      Container: Box/Folder 20-06 / 103-106
      Location: Montana Power Company
    • Description: Group 12: Idaho Transmission Company, includes historical data, data submitted to FPC, retirement reserve
      Dates: 1936, n.d.
      Container: Box/Folder 20-06 / 107-109
      Location: Montana Power Company
    • Description: Group 14: Great Falls Water Power and Townsite Company includes financial data, letters, excerpts from minutes, property account, stock exchange, blueprint of tranmission line, audit report, data furnished by FPC, stockholders and directors, dividends, income
      Dates: 1904-
      Container: Box/Folder 20-06 / 115-134
      Location: Montana Power Company
    • Description: Hagenah valuations
      Dates: 1939
      Container: Box/Folder 20-13 / 5
      Location: Montana Power Company
    • Description: Hagenah valuations: Madison River Power Company (reconciliation with consolidated balance sheet) (really important?)
      Dates: 1913-1941
      Container: Box/Folder 20-56 / 1
      Location: Montana Power Company
    • Description: History, early (notes, etc.)
      Dates: undated
      Container: Box/Folder 20-13 / 7
      Location: Montana Power Company
    • Description: ICC: Chicago, Milwaukee & St. Paul Ry. investigation
      Dates: 1926
      Container: Box/Folder 20-94 / 2
      Location: Montana Power Company
    • Description: Inventories of electrical system?? #001-055
      Dates: 1939
      Container: Box/Folder 20-46 /
      Location: Montana Power Company
    • Description: Inventories of electrical system?? #057-106
      Dates: 1939
      Container: Box/Folder 20-29 /
      Location: Montana Power Company
    • Description: Inventories of electrical system?? #107-141
      Dates: 1939
      Container: Box/Folder 20-72 /
      Location: Montana Power Company
    • Description: Job orders index (Billings, Bozeman, Butte, Great Falls, Helena, Lewistown, Livingston, MIssoula)
      Dates: 1912-1940
      Container: Box/Folder 20-55 / 7
      Location: Montana Power Company
    • Description: Journal entries #01-1 Organization
      Dates: undated
      Container: Box/Folder 21-14 / 1
      Location: Montana Power Company
    • Description: Journal entries #01-2 Franchises and consents
      Dates: undated
      Container: Box/Folder 21-14 / 2
      Location: Montana Power Company
    • Description: Journal entries #01-3 Misc.
      Dates: undated
      Container: Box/Folder 21-14 / 3
      Location: Montana Power Company
    • Description: Journal entries #02-1 Missoula steam plant
      Dates: undated
      Container: Box/Folder 21-14 / 4
      Location: Montana Power Company
    • Description: Journal entries #03-1,3 production plants
      Dates: undated
      Container: Box/Folder 21-12 / 1-2
      Location: Montana Power Company
    • Description: Journal entries #03-2 thru 03-6 production plants
      Dates: 1913-1936?
      Container: Box/Folder 21-5 / 1-5
      Location: Montana Power Company
    • Description: Journal entries #03-3 Plant production Moser
      Dates: undated
      Container: Box/Folder 21-14 / 5
      Location: Montana Power Company
    • Description: Journal entries #03-7 thru 3-14 Production plants
      Dates: 1913-1936?
      Container: Box/Folder 21-16 / 1-7
      Location: Montana Power Company
    • Description: Journal entries #03-8 Production plants (Milltown)
      Dates: 1913-1936?
      Container: Box/Folder 21-15 / 2
      Location: Montana Power Company
    • Description: Journal entries #03-8 Production plants (Milltown)
      Dates: 1913-1936?
      Container: Box/Folder 21-15 / 2
      Location: Montana Power Company
    • Description: Journal entries #04-1 thru 4-29 substations [scattered]
      Dates: 1913-1936?
      Container: Box/Folder 21-3 / 1-10?
      Location: Montana Power Company
    • Description: Journal entries #04-27 Rainbow Dam switchyard
      Dates: undated
      Container: Box/Folder 21-14 / 6
      Location: Montana Power Company
    • Description: Journal entries #04-6 thru 04-10 substations
      Dates: 1913-1936?
      Container: Box/Folder 21-7 / 1-5
      Location: Montana Power Company
    • Description: Journal entries #05-1 thru 05-37 transmission lines ?
      Dates: 1913-1936?
      Container: Box/Folder 21-3 / 11-50?
      Location: Montana Power Company
    • Description: Journal entries #05-136 thru 5-167: transmission lines ?
      Dates: 1913-1936?
      Container: Box/Folder 21-1 / 1-32
      Location: Montana Power Company
    • Description: Journal entries #05-168 thru 05-178 transmission lines
      Dates: 1913-1936?
      Container: Box/Folder 21-7 / 6-16
      Location: Montana Power Company
    • Description: Journal entries #05-22 Bridger; Red Lodge
      Dates: undated
      Container: Box/Folder 21-14 / 7
      Location: Montana Power Company
    • Description: Journal entries #05-37 thru 05-83 transmission lines ?
      Dates: 1913-1936?
      Container: Box/Folder 21-6 / 1-45?
      Location: Montana Power Company
    • Description: Journal entries #06-1 thru 06-26 substations
      Dates: 1913-1936?
      Container: Box/Folder 21-7 / 17-43
      Location: Montana Power Company
    • Description: Journal entries #06-120,120 Substations: Missouri River, Butte
      Dates: undated
      Container: Box/Folder 21-14 / 8
      Location: Montana Power Company
    • Description: Journal entries #06-154 thru 06-193 substations
      Dates: 1913-1936?
      Container: Box/Folder 21-5 / 6-46?
      Location: Montana Power Company
    • Description: Journal entries #06-27 thru 06-82 Substations
      Dates: 1913-1936?
      Container: Box/Folder 21-17 / 1-55
      Location: Montana Power Company
    • Description: Journal entries #06-83 thru 06-153 substations
      Dates: 1913-1936?
      Container: Box/Folder 21-11 / 1-50?
      Location: Montana Power Company
    • Description: Journal entries #07-1-140 Wire size...
      Dates: undated
      Container: Box/Folder 21-14 / 9
      Location: Montana Power Company
    • Description: Journal entries #07-1-141 Overhead distribution system office records [good]
      Dates: 1941
      Container: Box/Folder 05-39 / 2
      Location: Montana Power Company
    • Description: Journal entries #07-1:143-150 division Maps, division
      Dates: 1913-1936?
      Container: Box/Folder 21-18 / 1-7
      Location: Montana Power Company
    • Description: Journal entries #07-1-151 Maps Mountain States Telephone and Telegraph and MPC
      Dates: undated
      Container: Box/Folder 21-14 / 10
      Location: Montana Power Company
    • Description: Journal entries #07-1-160 procedure of summarizing and costing inventory [mostly blank inventory forms: actually it explains what forms were used and field procedure]
      Dates: 1941
      Container: Box/Folder 05-39 / 1
      Location: Montana Power Company
    • Description: Journal entries #07-3 thru 07-5 Meters, transformers etc.
      Dates: undated
      Container: Box/Folder 21-59 / 1-5
      Location: Montana Power Company
    • Description: Journal entries #08-1 thru 08-7 overhead distribution system?
      Dates: undated
      Container: Volume 7-12
      Location: Montana Power Company
    • Description: Journal entries #09-1 thru 09-3 distribution system property
      Dates: undated
      Container: Volume 13-16
      Location: Montana Power Company
    • Description: Journal entries #09-4 Inventory adjustments
      Dates: undated
      Container: Box/Folder 21-59 / 6
      Location: Montana Power Company
    • Description: Journal entries #10-1 thru 10-5 overhead distribution system final costs
      Dates: undated
      Container: Volume 17-19
      Location: Montana Power Company
    • Description: Journal entries #10-2 Distribution system final cost (accounts 356-363)
      Dates: undated
      Container: Box/Folder 21-59 / 7
      Location: Montana Power Company
    • Description: Journal entries #11-1 thru 11-3 Distribution
      Dates: 1910s- 1939
      Container: Box/Folder 21-59 / 8-10
      Location: Montana Power Company
    • Description: Journal entries #11-21 thru 11-30 Distribution system
      Dates: 1913-1939
      Container: Box/Folder 21-51 / 1-9
      Location: Montana Power Company
    • Description: Journal entries #11-4 thru 11-11 Distribution
      Dates: 1910s- 1939
      Container: Box/Folder 21-58 / 1-8
      Location: Montana Power Company
    • Description: Journal entries #12-2 29 Summary Transformer auto current [ important??]
      Dates: 1916-1936
      Container: Box/Folder 21-28 / 8
      Location: Montana Power Company
    • Description: Journal entries #12-2-14 thru 12-2-19 Analysis of material costs: MPC [probably important summary]
      Dates: 1920-1929
      Container: Box/Folder 21-28 / 7
      Location: Montana Power Company
    • Description: Journal entries #12-3 analysis of material costs summary
      Dates: undated
      Container: Volume 20-23
      Location: Montana Power Company
    • Description: Journal entries #13-1 thru 13-2 distribution system material reshipments
      Dates: undated
      Container: Volume 24-25
      Location: Montana Power Company
    • Description: Journal entries #14-11 Plant inventories
      Dates: undated
      Container: Box/Folder 21-20 / 6
      Location: Montana Power Company
    • Description: Journal entries #14-33 Office furniture and equipment
      Dates: 1920s-1930s
      Container: Box/Folder 21-13 / 2
      Location: Montana Power Company
    • Description: Journal entries #14-8 thru 14-10 Equipment inventories
      Dates: 1940?
      Container: Box/Folder 21-28 / 1-3
      Location: Montana Power Company
    • Description: Journal entries #15-3 thru 15-4 Organization charts and progress reports [important?]
      Dates: 1939-1940
      Container: Box/Folder 21-28 / 4-5
      Location: Montana Power Company
    • Description: Journal entries #16;18 study (interest during construction)
      Dates: undated
      Container: Box/Folder 21-19 / 3
      Location: Montana Power Company
    • Description: Journal entries #18 cost studies: division recapitulation
      Dates: undated
      Container: Box/Folder 21-10 / 1-2
      Location: Montana Power Company
    • Description: Journal entries #19 administrative expense working papers
      Dates: undated
      Container: Box/Folder 21-10 / 3
      Location: Montana Power Company
    • Description: Journal entries #20 Electric Plant lease
      Dates: undated
      Container: Box/Folder 21-10 / 4
      Location: Montana Power Company
    • Description: Journal entries #21 Other utility plants (gas, water, steam)
      Dates: undated
      Container: Box/Folder 21-15 / 1
      Location: Montana Power Company
    • Description: Journal entries #22 Other physical property
      Dates: undated
      Container: Box/Folder 21-10 / 5
      Location: Montana Power Company
    • Description: Journal entries #23 leased property, customers' premises
      Dates: undated
      Container: Box/Folder 21-10 / 6
      Location: Montana Power Company
    • Description: Journal entries #24 leased property expenditures
      Dates: undated
      Container: Box/Folder 21-10 / 7
      Location: Montana Power Company
    • Description: Journal entries #25 construction work progress
      Dates: undated
      Container: Box/Folder 21-10 / 8
      Location: Montana Power Company
    • Description: Journal entries #26 Distribution of land B-Z
      Dates: undated
      Container: Box/Folder 21-10 / 9-10
      Location: Montana Power Company
    • Description: Journal entries #26-2 distribution runs
      Dates: undated
      Container: Box/Folder 21-20 / 7
      Location: Montana Power Company
    • Description: Journal entries #27 data pertaining to all structures
      Dates: undated
      Container: Box/Folder 21-10 / 11
      Location: Montana Power Company
    • Description: Journal entries #28 Analysis of pole stubbing distribution, transmission lines
      Dates: 1941
      Container: Box/Folder 21-28 / 6
      Location: Montana Power Company
    • Description: Journal entries #29-1 thru 29-13 predecessor companies
      Dates: 1892-1912?
      Container: Box/Folder 21-9 / 1-13
      Location: Montana Power Company
    • Description: Journal entries #29-14 Madison River Power
      Dates: 1908
      Container: Box/Folder 21-19 / 4
      Location: Montana Power Company
    • Description: Journal entries #29-16 thru 29-25 predecessor companies
      Dates: 1892-1937?
      Container: Box/Folder 21-13 / 3-11
      Location: Montana Power Company
    • Description: Journal entries #29-16(9) Gallatin Light...
      Dates: 1908?
      Container: Box/Folder 21-19 / 5
      Location: Montana Power Company
    • Description: Journal entries #30-1 Job orders index and explanation [important?]
      Dates: 1918-1939
      Container: Box/Folder 21-28 / 7
      Location: Montana Power Company
    • Description: Journal entries #31 accounts 501-1133
      Dates: 1918-1935
      Container: Box/Folder 21-19 / 6
      Location: Montana Power Company
    • Description: Journal entries #33 Reproduction cost estimate
      Dates: undated
      Container: Box/Folder 21-13 / 12
      Location: Montana Power Company
    • Description: Journal entries #34 Electric Plant adjustments (co. construction plus admin and gen'l costs)
      Dates: undated
      Container: Box/Folder 21-13 / 13
      Location: Montana Power Company
    • Description: Journal entries #35 Material turnover study
      Dates: undated
      Container: Box/Folder 21-13 / 14
      Location: Montana Power Company
    • Description: Journal entries #36 Installations, consumers' premises
      Dates: undated
      Container: Box/Folder 21-19 / 7
      Location: Montana Power Company
    • Description: Journal entries #38 Statement "A"
      Dates: undated
      Container: Box/Folder 21-13 / 15
      Location: Montana Power Company
    • Description: Journal entries #41 Statement "B"
      Dates: undated
      Container: Box/Folder 21-13 / 16
      Location: Montana Power Company
    • Description: Journal entries #43 Statement "D"
      Dates: undated
      Container: Box/Folder 21-13 / 17
      Location: Montana Power Company
    • Description: Journal entries no# meter and transformer purchases
      Dates: 1936
      Container: Box/Folder 21-13 / 18
      Location: Montana Power Company
    • Description: Legal documents: several predecessor companies, etc.
      Dates: pre 1912
      Container: Box/Folder 05-34 / 13
      Location: Montana Power Company
    • Description: Legal property material (in big black loose leaf binders, some by Cooper, Stephenson and Hoover; seems to be abstract of title material primarily; some lease material)
      Dates: undated
      Container: Box/Folder 20-70 / 1-7
      Location: Montana Power Company
    • Description: Letters and instructions (re cost studies)
      Dates: 1939
      Container: Box/Folder 20-13 / 17
      Location: Montana Power Company
    • Description: [loose unsorted material]
      Dates: undated
      Container: Box/Folder 20-93 /
      Location: Montana Power Company
    • Description: Madison contracts
      Dates: 1905-1907
      Container: Box/Folder 20-13 / 15
      Location: Montana Power Company
    • Description: Management practices
      Dates: 1959-1960
      Container: Box/Folder 20-10 / 1-5
      Location: Montana Power Company
    • Description: Maps: transmission lines
      Dates: undated
      Container: Box/Folder 20-14 / 6
      Location: Montana Power Company
    • Description: Maps lists (Butte: Homestake Beacon line; Butte vicinity primary circuits)
      Dates: undated
      Container: Box/Folder 21-19 / 1-2
      Location: Montana Power Company
    • Description: Memoranda and opinions #6-17
      Dates: 1940s?
      Container: Box/Folder 20-22 / 1-11
      Location: Montana Power Company
    • Description: Milwaukee Road electrification [file 14]
      Dates: 1923
      Container: Box/Folder 21-31 / 8
      Location: Montana Power Company
    • Description: Miscellaneous folded documents (legal documents, appraisals, etc.)
      Dates: undated
      Container: Box/Folder 20-13 / 21
      Location: Montana Power Company
    • Description: Mitchell, Sidney Zollicoffer (obituaries, correspondence etc.
      Dates: 1908-1944
      Container: Box/Folder 05-31 / 14
      Location: Montana Power Company
    • Description: Notes, personal
      Dates: 1931
      Container: Box/Folder 20-13 / 4
      Location: Montana Power Company
    • Description: Operating reports for MPC and subsidiaries: details
      Dates: 1915-1927
      Container: Box/Folder 20-49 / 23-34
      Location: Montana Power Company
    • Description: Operating reports for MPC and subsidiaries: summaries
      Dates: 1917-1938
      Container: Box/Folder 20-49 / 1-22
      Location: Montana Power Company
    • Description: Operating revenues and customers by divisions etc.
      Dates: 1941-1958
      Container: Box/Folder 20-55 / 8
      Location: Montana Power Company
    • Description: Organization of MPC (brief memo)
      Dates: undated
      Container: Box/Folder 20-82 / 1
      Location: Montana Power Company
    • Description: Organizational charts
      Dates: undated
      Container: Box/Folder 20-02 / 3
      Location: Montana Power Company
    • Description: Original cost study (mostly theoretical background, some published)
      Dates: undated
      Container: Box/Folder 20-24 / 1-6
      Location: Montana Power Company
    • Description: Original cost study (semi-monthly progress reports)
      Dates: 1939-1940
      Container: Box/Folder 20-24 / 7
      Location: Montana Power Company
    • Description: Overhead Distribution system inventory, office records, field questions
      Dates: 1940
      Container: Box/Folder 20-41 / 8
      Location: Montana Power Company
    • Description: Overhead Distribution system, pole miles and circuit miles, summary
      Dates: 1940
      Container: Box/Folder 20-41 / 1-7
      Location: Montana Power Company
    • Description: Overhead Distribution system, pole miles and circuit miles, vol. 1-6
      Dates: 1940
      Container: Box/Folder 20-41 / 1-6
      Location: Montana Power Company
    • Description: Palmer, Otis--inventory reports on various operations
      Dates: 1936-1938
      Container: Box/Folder 20-73 / 2-14
      Location: Montana Power Company
    • Description: Photograph albums (3 vol.) to accompany 1941 valuation [great!]
      Dates: 1941
      Container: Box/Folder 20-44 / 1-3
      Location: Montana Power Company
    • Description: Plant reclassification notes (preliminary report)
      Dates: undated
      Container: Box/Folder 20-55 / 2
      Location: Montana Power Company
    • Description: Plant valuation
      Dates: undated
      Container: Box/Folder 20-13 / 1
      Location: Montana Power Company
    • Description: Plant valuation file #002-9 (valuations by different people)
      Dates: undated
      Container: Box/Folder 20-69 / 40-49
      Location: Montana Power Company
    • Description: Power plant data
      Dates: undated
      Container: Box/Folder 20-13 / 11
      Location: Montana Power Company
    • Description: Power plant data
      Dates: 1942
      Container: Box/Folder 05-31 / 4
      Location: Montana Power Company
    • Description: Production plants cost study: Canyon Ferry, Hauser, Madison, #1-9
      Dates: undated
      Container: Box/Folder 20-02 / 14-22
      Location: Montana Power Company
    • Description: Property inspection field notes by J.S. Hartt, vol. 3,4,7,8,9
      Dates: 1948
      Container: Box/Folder 21-53 / 1-5
      Location: Montana Power Company
    • Description: Property inspection field notes: meters summaries by J.S. Hartt, vol. 4
      Dates: 1943
      Container: Box/Folder 21-53 / 6
      Location: Montana Power Company
    • Description: Property record supplemental sheets, work sheets
      Dates: 1937-1947
      Container: Box/Folder 21-13 / 19
      Location: Montana Power Company
    • Description: Property records system
      Dates: 1944
      Container: Box/Folder 20-60 / 4
      Location: Montana Power Company
    • Description: PSC docket 080.8.55
      Dates: 1980-1981
      Container: Box/Folder 20-04 / 4-13?
      Location: Montana Power Company
    • Description: PSC docket 3421
      Dates: undated
      Container: Box/Folder 20-04 / 1-3?
      Location: Montana Power Company
    • Description: PSC docket 3421
      Dates: 1944
      Container: Box/Folder 20-48 / 32
      Location: Montana Power Company
    • Description: PSC Docket 80-8-55 rate (includes audits of accounts, $15.7 million case)
      Dates: 1980
      Container: Box/Folder 20-16 / 6-9
      Location: Montana Power Company
    • Description: Rates
      Dates: undated
      Container: Box/Folder 20-13 / 13
      Location: Montana Power Company
    • Description: Recapitulation adjustment corrections detail
      Dates: 1936
      Container: Box/Folder 21-39 / 6
      Location: Montana Power Company
    • Description: Reclassification: 3B C.F. Kelley and W.D. Thornton depositions before FPC
      Dates: 1943
      Container: Box/Folder 20-11 / 1
      Location: Montana Power Company
    • Description: Reclassification: 3C Sullivan and Cromwell files for FPC negative photostats
      Dates: undated
      Container: Box/Folder 20-93 / loose
      Location: Montana Power Company
    • Description: Reclassification: 3C Sullivan and Cromwell files for FPC (photocopies)
      Dates: 1906-1930?
      Container: Box/Folder 20-11 / 2-7
      Location: Montana Power Company
    • Description: Reclassification: 3D C.F. Kelley files for FPC (photocopies)
      Dates: 1909-1913
      Container: Box/Folder 20-11 / 8
      Location: Montana Power Company
    • Description: Reclassification: 3E Sullivan and Cromwell files for MPC attorneys in 1943 (photocopies)
      Dates: 1910-1912?
      Container: Box/Folder 20-11 / 9-10
      Location: Montana Power Company
    • Description: Reclassification: 3G memo re review of MPC files by FPC attorneys
      Dates: 1944
      Container: Box/Folder 20-11 / 11
      Location: Montana Power Company
    • Description: Reclassification: memoranda of requests
      Dates: 1942-1943
      Container: Box/Folder 20-11 / 12
      Location: Montana Power Company
    • Description: Reclassification: misc. files [need evaluation]
      Dates: undated
      Container: Box/Folder 20-94 / 3-20?
      Location: Montana Power Company
    • Description: Reclassification: misc. files [includes quite a few legal documents etc.]
      Dates: undated
      Container: Box/Folder 20-95 / 1-20?
      Location: Montana Power Company
    • Description: Reclassification: prints to be used with analysis of underground system
      Dates: undated
      Container: Box/Folder 20-09 / 11
      Location: Montana Power Company
    • Description: Reclassification: review and extension of supporting data (includes progress report, 1941)
      Dates: 1939-1942
      Container: Box/Folder 20-82 / 41
      Location: Montana Power Company
    • Description: Reclassification data furnished by Statistical Dept.
      Dates: 1939-1940
      Container: Box/Folder 20-98 / 20
      Location: Montana Power Company
    • Description: Reclassification: data on Butte Branch consumption of Madison River Power Company #20.48
      Dates: 1912
      Container: Box/Folder 20-05 / 28
      Location: Montana Power Company
    • Description: Reclassification: data prepared for F.H. Woy #20-44, files A-J)
      Dates: 1943-1944
      Container: Box/Folder 20-05 / 18-27
      Location: Montana Power Company
    • Description: Reclassification errors distribution
      Dates: 1941
      Container: Box/Folder 21-32 / 10
      Location: Montana Power Company
    • Description: Reclassification file #01: opinions and decisions
      Dates: 1941-1944
      Container: Box/Folder 20-61 / 1
      Location: Montana Power Company
    • Description: Reclassification file #02: briefs
      Dates: 1941-1944
      Container: Box/Folder 20-61 / 2
      Location: Montana Power Company
    • Description: Reclassification file #03-4: general memoranda (includes extra copies)
      Dates: 1941-1944
      Container: Box/Folder 20-61 / 3-4
      Location: Montana Power Company
    • Description: Reclassification file #05: opinion of Kelly and Evans re Holter, Hauser, Canyon Ferry... [several copies]
      Dates: 1912
      Container: Box/Folder 20-61 / 5
      Location: Montana Power Company
    • Description: Reclassification file #06: fundamental principles to be followed
      Dates: 1939
      Container: Box/Folder 20-63 / 1
      Location: Montana Power Company
    • Description: Reclassification file #07: data on electric power plants ... prior to installation...from MPC [only cross reference sheet]
      Dates: undated
      Container: Box/Folder 20-63 / 3
      Location: Montana Power Company
    • Description: Reclassification file #07: FTC hearings
      Dates: 1942
      Container: Box/Folder 20-63 / 2
      Location: Montana Power Company
    • Description: Reclassification file #07-1-161 Ownership of rural and sundry lines
      Dates: 1939
      Container: Box/Folder 21-13 / 1
      Location: Montana Power Company
    • Description: Reclassification file #08: data on electric power plants ... prior to installation...from MPC [only cross reference sheet]
      Dates: undated
      Container: Box/Folder 20-63 / 3
      Location: Montana Power Company
    • Description: Reclassification file #09: summaries of FPC orders re accounts 100.5 and 100.7
      Dates: undated
      Container: Box/Folder 20-63 / 4
      Location: Montana Power Company
    • Description: Reclassification file #10: memos of request form FPC examiners - replies
      Dates: 1941-1945
      Container: Box/Folder 20-63 / 5
      Location: Montana Power Company
    • Description: Reclassification file #11: MPC and predecessors info. [cross reference sheet]
      Dates: undated
      Container: Box/Folder 20-63 / 6
      Location: Montana Power Company
    • Description: Reclassification file #12: "The founding of Great Falls, Montana, and some of its early records", by Paris Gibson [important, library: PAM 2719] [2 copies]
      Dates: 1914
      Container: Box/Folder 20-63 / 7
      Location: Montana Power Company
    • Description: Reclassification file #13: Return average rate allowed
      Dates: 1913-1939
      Container: Box/Folder 20-63 / 8
      Location: Montana Power Company
    • Description: Reclassification file #14: Report on reclassification and original cost studies of Electric Plant
      Dates: 1937
      Container: Box/Folder 20-63 / 9
      Location: Montana Power Company
    • Description: Reclassification file #14-2 general equipment unit costs
      Dates: 1936?
      Container: Box/Folder 21-8 / 1
      Location: Montana Power Company
    • Description: Reclassification file #16: Chart showing corporate ownership of all companies [see also 20-02:3]
      Dates: undated
      Container: Box/Folder 20-63 / 10
      Location: Montana Power Company
    • Description: Reclassification file #17: Going Value: allowances by courts and commissions
      Dates: 1940
      Container: Box/Folder 20-63 / 11
      Location: Montana Power Company
    • Description: Reclassification file #18: Organization expense
      Dates: 1941
      Container: Box/Folder 20-63 / 12
      Location: Montana Power Company
    • Description: Reclassification file #19: Survey of evidence desired in connection with Great Falls properties
      Dates: 1942
      Container: Box/Folder 20-63 / 13
      Location: Montana Power Company
    • Description: Reclassification file #20: Outlines of evidence
      Dates: 1940
      Container: Box/Folder 20-63 / 14
      Location: Montana Power Company
    • Description: Reclassification file #21: Memo of comments of FPC examiners
      Dates: n.d.
      Container: Box/Folder 20-63 / 15
      Location: Montana Power Company
    • Description: Reclassification file #22: Distribution of reclassification statements
      Dates: 1940
      Container: Box/Folder 20-63 / 16
      Location: Montana Power Company
    • Description: Reclassification file #23: Notes and studies of proposed refiling of reclassification statements
      Dates: n.d.
      Container: Box/Folder 20-63 / 17
      Location: Montana Power Company
    • Description: Reclassification file #24: Public utility holding company act of 1935 provisions recognizing jurisdiction of state commissions [several copies]
      Dates: n.d.
      Container: Box/Folder 20-63 / 18
      Location: Montana Power Company
    • Description: Reclassification file #25: Taxation, history of federal income tax

      RESTRICTED

      Dates: 1942
      Container: Box/Folder 20-63 / 19
      Location: Montana Power Company
    • Description: Reclassification file #26: Preliminary notes on plant reclassification [important]
      Dates: 1936?
      Container: Box/Folder 20-63 / 20
      Location: Montana Power Company
    • Description: Reclassification file #27: Invested capital study by J.R. Sullivan and R. Gilpin re excess profits tax

      RESTRICTED

      Dates: 1943?
      Container: Box/Folder 20-63 / 21
      Location: Montana Power Company
    • Description: Reclassification file #28: correspondence from Hogan ["not court file"]
      Dates: 1910-1925
      Container: Box/Folder 20-63 / 22
      Location: Montana Power Company
    • Description: Reclassification file #29: reclassification instructions issued by Ebasco Service Inc. [several copies]
      Dates: 1937
      Container: Box/Folder 20-63 / 23
      Location: Montana Power Company
    • Description: Reclassification file #30: Electrical utilities statistics FPC annual report
      Dates: 1941
      Container: Box/Folder 20-63 / 24
      Location: Montana Power Company
    • Description: Reclassification file #31: temporary file of ownership charts of various companies etc.
      Dates: undated
      Container: Box/Folder 20-63 / 25
      Location: Montana Power Company
    • Description: Reclassification file #32: "History of Economic Development of Montana," by R.H. Fletcher [several copies]
      Dates: 1942
      Container: Box/Folder 20-63 / 26
      Location: Montana Power Company
    • Description: Reclassification file #33: Information re predecessor companies received from S.P. Hogan, J.R. Thomas, and Harold Sterling
      Dates: undated
      Container: Box/Folder 20-63 / 27
      Location: Montana Power Company
    • Description: Reclassification file #34: Integration information [several studies, several copies]
      Dates: 1940-1942
      Container: Box/Folder 20-63 / 28
      Location: Montana Power Company
    • Description: Reclassification file #35: capitalization of overhead...
      Dates: 1942
      Container: Box/Folder 20-63 / 29
      Location: Montana Power Company
    • Description: Reclassification file #36: PSC petition for order to take depositions
      Dates: 1943
      Container: Box/Folder 20-63 / 30
      Location: Montana Power Company
    • Description: Reclassification file #36A: PSC orders etc. [several copies]
      Dates: 1944
      Container: Box/Folder 20-63 / 31
      Location: Montana Power Company
    • Description: Reclassification file #36B: FPC orders etc. [several copies]
      Dates: 1944
      Container: Box/Folder 20-63 / 32
      Location: Montana Power Company
    • Description: Reclassification file #36C: PSC hearings memos of presentation
      Dates: 1943
      Container: Box/Folder 20-98 / 1
      Location: Montana Power Company
    • Description: Reclassification file #36D-E: PSC petition of American Power and Light
      Dates: 1944
      Container: Box/Folder 20-98 / 2-3
      Location: Montana Power Company
    • Description: Reclassification file #36F: material re intervention of stockholders
      Dates: 1944
      Container: Box/Folder 20-98 / 4
      Location: Montana Power Company
    • Description: Reclassification file #36G: petitions re oral argument
      Dates: 1944
      Container: Box/Folder 20-98 / 5
      Location: Montana Power Company
    • Description: Reclassification file #36G: PSC findings, opinion and order
      Dates: 1945
      Container: Box/Folder 20-98 / 6
      Location: Montana Power Company
    • Description: Reclassification file #36I: summary of plant after PSC order
      Dates: 1945
      Container: Box/Folder 20-98 / 7
      Location: Montana Power Company
    • Description: Reclassification file #36J: Opinion and order FPC
      Dates: 1945
      Container: Box/Folder 20-98 / 8
      Location: Montana Power Company
    • Description: Reclassification file #36K: petition for rehearing before FPC
      Dates: 1945
      Container: Box/Folder 20-98 / 9
      Location: Montana Power Company
    • Description: Reclassification file #37: American Telephone and Telegraph vs. FCC affidavits
      Dates: 1935
      Container: Box/Folder 20-98 / 10
      Location: Montana Power Company
    • Description: Reclassification file #38: Ebasco statements re intangibles
      Dates: 1943
      Container: Box/Folder 20-98 / 11
      Location: Montana Power Company
    • Description: Reclassification file #39: United Gas Corp case and Carolina case
      Dates: 1942
      Container: Box/Folder 20-98 / 12
      Location: Montana Power Company
    • Description: Reclassification file #40: estimates of earnings etc.
      Dates: 1910-1915
      Container: Box/Folder 20-98 / 13
      Location: Montana Power Company
    • Description: Reclassification file #41: Commonwealth and Southern postwar volume
      Dates: 1943
      Container: Box/Folder 20-98 / 14
      Location: Montana Power Company
    • Description: Reclassification file #42: Missouri and Madison rights of way
      Dates: 1943
      Container: Box/Folder 20-98 / 15
      Location: Montana Power Company
    • Description: Reclassification file #43: chronology of reclassification work [important!!!]
      Dates: 1936-1944
      Container: Box/Folder 20-98 / 16
      Location: Montana Power Company
    • Description: Reclassification file #44: early long distance transmission [includes Great Falls to Butte]
      Dates: 1908
      Container: Box/Folder 20-98 / 17
      Location: Montana Power Company
    • Description: Reclassification file #45: testimony of various people in out-of-state cases
      Dates: 1944, n.d.
      Container: Box/Folder 20-98 / 18
      Location: Montana Power Company
    • Description: Reclassification file #46: factual statement [important] [several copies]
      Dates: 1936
      Container: Box/Folder 20-98 / 19
      Location: Montana Power Company
    • Description: Reclassification: historical data (from E.N. Duffy)
      Dates: undated
      Container: Box/Folder 20-05 / 15
      Location: Montana Power Company
    • Description: Reclassification: misc. unlabelled folders
      Dates: undated
      Container: Box/Folder 20-82 / 43-49
      Location: Montana Power Company
    • Description: Reclassification of Electric Plant: vol. 5,7,8
      Dates: 1936, 1941
      Container: Box/Folder 21-20 / 2-4
      Location: Montana Power Company
    • Description: Reclassification, plant--notes
      Dates: undated
      Container: Box/Folder 20-13 / 8
      Location: Montana Power Company
    • Description: Reclassification records index (3rd copy)
      Dates: 1937
      Container: Box/Folder 20-60 / 8
      Location: Montana Power Company
    • Description: Reclassification records index
      Dates: undated
      Container: Box/Folder 21-25 / 11
      Location: Montana Power Company
    • Description: Reclassification records index
      Dates: 1937
      Container: Box/Folder 21-23 / 7
      Location: Montana Power Company
    • Description: Reclassification records index (2 copies)
      Dates: 1937
      Container: Box/Folder 20-55 / 5
      Location: Montana Power Company
    • Description: Reclassification retirements
      Dates: 1940-1944
      Container: Box/Folder 21-32 / 11
      Location: Montana Power Company
    • Description: Reclassification: substations (Anaconda, Rainbow switchyard, Livingston, Canyon Ferry, Wallace, madison, Norris...)
      Dates: 1938-1939
      Container: Box/Folder 21-39 / 1-4
      Location: Montana Power Company
    • Description: Reclassification: working papers
      Dates: 1937
      Container: Box/Folder 20-05 / 16
      Location: Montana Power Company
    • Description: Reclassification: working papers (recapitulation)
      Dates: 1945
      Container: Box/Folder 20-05 / 17
      Location: Montana Power Company
    • Description: Reclassification: progress reports
      Dates: 1941
      Container: Box/Folder 20-82 / 42
      Location: Montana Power Company
    • Description: Reconciliation with FPC staff report [work sheets]
      Dates: 1936
      Container: Box/Folder 21-23 / 4
      Location: Montana Power Company
    • Description: Report on the Cost of Capital to Public Utilities, by Byllesby engineering and Management Corp.
      Dates: 1928
      Container: Box/Folder 05-31 / 20
      Location: Montana Power Company
    • Description: Reports: Butte Electric and Power Company bonds
      Dates: 1926
      Container: Box/Folder 20-05 / 1
      Location: Montana Power Company
    • Description: Reports: History of Montana Power Company and Water Power Value, by William J. Hagenah, Vol. 1-2
      Dates: 1943
      Container: Box/Folder 20-05 / 11-12
      Location: Montana Power Company
    • Description: Reports: Madison and Missouri Rivers in Montana (incl. photos etc.)
      Dates: n.d.
      Container: Box/Folder 20-45 / 7
      Location: Montana Power Company
    • Description: Reports: Madison River Power Company; Billings and Eastern Montana Power Company (incl. photos etc.)
      Dates: n.d.
      Container: Box/Folder 20-45 / 8
      Location: Montana Power Company
    • Description: Reports: Madison River Power Company on construction including wonderful photos (also includes Billings and Eastern Montana Power Co.)
      Dates: n.d.
      Container: Box/Folder 20-18 / 3
      Location: Montana Power Company
    • Description: Reports: Missouri River Electric and Power Company; Thompson Falls Power Company (inc. photos etc.)
      Dates: n.d.
      Container: Box/Folder 05-31 / 1
      Location: Montana Power Company
    • Description: Reports: Missouri River Electric and Power Company; Thompson Falls Power Company (incl. photos etc.)
      Dates: n.d.
      Container: Box/Folder 20-45 / 9
      Location: Montana Power Company
    • Description: Reports: Montana Power Company (2 vol.: includes photos of dams, substations, etc.) [2 copies of vol. 1] [great!]
      Dates: 1936?
      Container: Box/Folder 05-31 / 2-3
      Location: Montana Power Company
    • Description: Reports: Montana Power Company (2 vol.: includes photos of dams, substations, etc.) [2 copies of vol. 2] [great!]
      Dates: 1936?
      Container: Box/Folder 20-43 / 1-3
      Location: Montana Power Company
    • Description: Reports: Montana Power Company, Butte memorandum re taxes, depreciation... [etc.]

      RESTRICTED

      Dates: 1923
      Container: Box/Folder 20-05 / 2
      Location: Montana Power Company
    • Description: Reports: Montana Power Company evaluation
      Dates: 1941
      Container: Box/Folder 20-45 / 12
      Location: Montana Power Company
    • Description: Reports: Montana Power Company (incl. photos etc.) (2 vol.)
      Dates: n.d.
      Container: Box/Folder 20-45 / 10-11
      Location: Montana Power Company
    • Description: Reports: Plant valuation
      Dates: 1936
      Container: Box/Folder 20-45 / 13
      Location: Montana Power Company
    • Description: Reports: Thompson Falls Power Company
      Dates: n.d.
      Container: Box/Folder 20-08 / 101?
      Location: Montana Power Company
    • Description: Reports: U.S. Army Corps of Engineers re Columbia River and Tributaries, Appendix O: Power Generation and Transmission
      Dates: 1948
      Container: Box/Folder 20-55 / 10
      Location: Montana Power Company
    • Description: Reproduction cost estimate
      Dates: 1941
      Container: Box/Folder 21-23 / 1-2
      Location: Montana Power Company
    • Description: Reproduction cost new #1-6
      Dates: 1940s
      Container: Box/Folder 20-24 / 8-13
      Location: Montana Power Company
    • Description: Requests of quotations from Westinghouse Electric
      Dates: 1941-1943
      Container: Box/Folder 20-55 / 3-4
      Location: Montana Power Company
    • Description: Retirement account
      Dates: 1951-1952
      Container: Box/Folder 20-49 / 36
      Location: Montana Power Company
    • Description: Roundup
      Dates: undated
      Container: Box/Folder 20-13 / 14
      Location: Montana Power Company
    • Description: Rural Electric cooperatives
      Dates: 1949, 1957-1966
      Container: Box/Folder 05-34 / 10-11
      Location: Montana Power Company
    • Description: Scrapbooks (re Glacier Production Company, MPC, power, mines, etc.)
      Dates: undated
      Container: Box/Folder 05-33 / 1-5
      Location: Montana Power Company
    • Description: SEC: exhibit 4(c)
      Dates: 1953
      Container: Box/Folder 20-94 / 1
      Location: Montana Power Company
    • Description: SEC hearing #010.270 Reclassification
      Dates: 1945
      Container: Box/Folder 20-80 / 4
      Location: Montana Power Company
    • Description: SEC hearing #010.270 Reclassification [clippings]
      Dates: 1944
      Container: Box/Folder 20-80 / 5
      Location: Montana Power Company
    • Description: Securities and Exchange Commission: Schedules in support of direct testimony, by Jay Samuel Hartt
      Dates: 1944
      Container: Box/Folder 20-60 / 3
      Location: Montana Power Company
    • Description: Statistical Review, 5th annual
      Dates: 1951
      Container: Box/Folder 05-34 / 12
      Location: Montana Power Company
    • Description: Statistical summary, 2nd annual
      Dates: 1948
      Container: Box/Folder 20-92 / 7
      Location: Montana Power Company
    • Description: Stockholders, officers, directors, etc. lists
      Dates: 1919-1926
      Container: Box/Folder 20-60 / 12
      Location: Montana Power Company
    • Description: Substation inventories: Butte Great Falls, Billings, Lewistown, Livingston, Bozeman, Helena, Missoula, Idaho divisions [2 copies each]
      Dates: 1940
      Container: Box/Folder 20-36 / 1-7
      Location: Montana Power Company
    • Description: Telsmith Jaw Crusher instructions
      Dates: undated
      Container: Box/Folder 20-74 / 13
      Location: Montana Power Company
    • Description: Thompson Falls river data (card file)
      Dates: 1928
      Container: Box/Folder 05-34 / 14
      Location: Montana Power Company
    • Description: Time sheets (several people)
      Dates: 1954-1955
      Container: Box/Folder 20-73 / 15-21
      Location: Montana Power Company
    • Description: Time sheets (several people)
      Dates: 1954-1955
      Container: Box/Folder 20-79 / 1-8
      Location: Montana Power Company
    • Description: Transmission line summary
      Dates: undated
      Container: Volume 2
      Location: Montana Power Company
    • Description: Transmission lines completed
      Dates: 1915
      Container: Box/Folder 20-03 / 17
      Location: Montana Power Company
    • Description: Transmission lines construction index
      Dates: 1940
      Container: Box/Folder 21-32 / 12
      Location: Montana Power Company
    • Description: Transmission lines construction index
      Dates: n.d.
      Container: Box/Folder 20-45 / 3
      Location: Montana Power Company
    • Description: Transmission lines data from Division offices
      Dates: 1936
      Container: Box/Folder 20-55 / 1
      Location: Montana Power Company
    • Description: Transmission lines inventory
      Dates: 1936
      Container: Box/Folder 21-23 / 5
      Location: Montana Power Company
    • Description: Transmission patrolman's inventories
      Dates: undated
      Container: Box/Folder 21-12 / 11
      Location: Montana Power Company
    • Description: Unit costs
      Dates: 1941
      Container: Box/Folder 20-09 / 8
      Location: Montana Power Company
    • Description: Utah Construction Company payrolls
      Dates: 1947-1949
      Container: Volume 6
      Location: Montana Power Company
    • Description: Utility plant
      Dates: 1937
      Container: Box/Folder 20-02 / 24
      Location: Montana Power Company
    • Description: Valuation #001a land appraisal by F. Norby
      Dates: 1937
      Container: Box/Folder 05-41 / 1
      Location: Montana Power Company
    • Description: Valuation #002-08 Structures field notes and summaries (Black Eagle, Canyon Ferry, Dillon, Flint Creek, Hauser, Hebgen, Holter, Kerr, Madison, Milltown, Morony, Mystic Lake, Rainbow, Ryan, Thompson Falls)
      Dates: 1941
      Container: Box/Folder 20-76 / 1-7
      Location: Montana Power Company
    • Description: Valuation #009-18 Structures field notes and summaries (Rainbow, Ryan, Thompson Falls, Billings, Bozeman, Butte, Great Falls divisions)
      Dates: 1941
      Container: Box/Folder 20-53 / 1-10
      Location: Montana Power Company
    • Description: Valuation #019-27 Structures field notes and summaries (Great Falls, Lewistown, Helena, Livingston, & Missoula divisions)
      Dates: 1941
      Container: Box/Folder 20-27 / 1-9
      Location: Montana Power Company
    • Description: Valuation #028-36 Production Equipment field notes and summaries (Black Eagle, Canyon Ferry, Dillon, Hauser, Hebgen, Holter, Kerr, Madison)
      Dates: 1941
      Container: Box/Folder 20-27 / 1-9
      Location: Montana Power Company
    • Description: Valuation #037-44 Production Equipment field notes on dams (includes Morony, Mystic Lake, Rainbow, Ryan, Thompson Falls; and misc. equipment)
      Dates: 1941
      Container: Box/Folder 20-40 / 1-8
      Location: Montana Power Company
    • Description: Valuation #045-46 Transmission Substations field notes on station equipment (Black Eagle-Volta)
      Dates: 1941
      Container: Box/Folder 20-40 / 9-10
      Location: Montana Power Company
    • Description: Valuation #056-58 Distribution Substations field notes, station equipment (Mocassin - Zurich)
      Dates: 1941
      Container: Box/Folder 20-42 / 1-3
      Location: Montana Power Company
    • Description: Valuation #059 Transmission lines inventory and summary
      Dates: 1941
      Container: Box/Folder 20-42 / 4
      Location: Montana Power Company
    • Description: Valuation #060 Distribution system inventory and summary
      Dates: 1941
      Container: Box/Folder 20-42 / 5
      Location: Montana Power Company
    • Description: Valuation #061-63 General Equipment inventory accounts 372-378
      Dates: 1941
      Container: Box/Folder 20-42 / 6-8
      Location: Montana Power Company
    • Description: Valuation #064 General Equipment inventory and summary
      Dates: 1941
      Container: Box/Folder 20-37 / 1
      Location: Montana Power Company
    • Description: Valuation #065-66 field notes and summaries (all divisions; gas dept.)
      Dates: 1941
      Container: Box/Folder 20-37 / 2-3
      Location: Montana Power Company
    • Description: Valuation #067 Transmission field notes and summaries (Gas Dept.)
      Dates: 1941
      Container: Box/Folder 20-37 / 4
      Location: Montana Power Company
    • Description: Valuation #068 Distribution field notes and summaries (Gas Dept.mains, services, meters, regulators)
      Dates: 1941
      Container: Box/Folder 20-37 / 5
      Location: Montana Power Company
    • Description: Valuation #069 Gas Dept.
      Dates: 1941
      Container: Box/Folder 20-89 / 1
      Location: Montana Power Company
    • Description: Valuation #070 Steam Dept.
      Dates: 1941
      Container: Box/Folder 20-89 / 2
      Location: Montana Power Company
    • Description: Valuation #071 Water Dept.
      Dates: 1941
      Container: Box/Folder 20-89 / 3
      Location: Montana Power Company
    • Description: Valuation #072 [missing checked out to Harry Freeborn 3/21/90?]
      Dates: 1941
      Container: Box/Folder 20-89 / 4
      Location: Montana Power Company
    • Description: Valuation #072 Water Dept. inventory and summary
      Dates: 1937
      Container: Box/Folder 05-41 / 2
      Location: Montana Power Company
    • Description: Valuation #073 Structures Glacier Production Co.
      Dates: 1941
      Container: Box/Folder 20-89 / 5
      Location: Montana Power Company
    • Description: Valuation #074 Oil and Gas wells, field lines, Glacier Production Co.
      Dates: 1941
      Container: Box/Folder 20-89 / 6
      Location: Montana Power Company
    • Description: Valuation #075 Absorption Plant: Glacier Production Co.
      Dates: 1941
      Container: Box/Folder 20-89 / 7
      Location: Montana Power Company
    • Description: Valuation #076 Refinery inventory and work sheets Glacier Production co.
      Dates: 1941
      Container: Box/Folder 20-88 / 1
      Location: Montana Power Company
    • Description: Valuation #077 Structures & equipment inventory and summary Great Falls Townsite company
      Dates: 1941
      Container: Box/Folder 20-88 / 2
      Location: Montana Power Company
    • Description: Valuation #078 Labor rates all divisions
      Dates: 1941
      Container: Box/Folder 20-88 / 3
      Location: Montana Power Company
    • Description: Valuation #079 Cost analysis, Kerr, Morony Thompson Falls
      Dates: 1941
      Container: Box/Folder 20-88 / 5-6
      Location: Montana Power Company
    • Description: Valuation #079 Great Falls Townsite Company lots, lands etc.
      Dates: 1941
      Container: Box/Folder 20-88 / 4
      Location: Montana Power Company
    • Description: Valuation #082-83 Cost analysis: Kerr Plant
      Dates: 1941
      Container: Box/Folder 20-87 / 1-2
      Location: Montana Power Company
    • Description: Valuation #084 Construction Plant and equipment
      Dates: 1941
      Container: Box/Folder 20-87 / 3
      Location: Montana Power Company
    • Description: Valuation #085-87 Unit costs, structures
      Dates: 1941
      Container: Box/Folder 20-87 / 4-6
      Location: Montana Power Company
    • Description: Valuation #088 Unit costs, structures (Lewistown, Livingston, Missoula)
      Dates: 1941
      Container: Box/Folder 20-86 / 1
      Location: Montana Power Company
    • Description: Valuation #089-91 Electrical Dept.
      Dates: 1941
      Container: Box/Folder 20-86 / 2-4
      Location: Montana Power Company
    • Description: Valuation #092 Piping: labor, performance and cost
      Dates: 1941
      Container: Box/Folder 20-86 / 5
      Location: Montana Power Company
    • Description: Valuation #093 Transmission distribution and communication equipment, labor performance and cost
      Dates: 1941
      Container: Box/Folder 20-86 / 6
      Location: Montana Power Company
    • Description: Valuation #094-097 unit costs structures
      Dates: 1941
      Container: Volume 26-29
      Location: Montana Power Company
    • Description: Valuation #098-101 unit costs substations
      Dates: 1941
      Container: Volume 30-34
      Location: Montana Power Company
    • Description: Valuation #102 unit costs production plants
      Dates: 1941
      Container: Volume 35
      Location: Montana Power Company
    • Description: Valuation #104-106 unit costs piping
      Dates: 1941
      Container: Volume 36-38
      Location: Montana Power Company
    • Description: Valuation #107 unit costs transmission and distribution
      Dates: 1941
      Container: Volume 39
      Location: Montana Power Company
    • Description: Valuation #108 unit costs steam and water
      Dates: 1941
      Container: Volume 40
      Location: Montana Power Company
    • Description: Valuation #109-110 unit costs general equipment
      Dates: 1941
      Container: Volume 41-42
      Location: Montana Power Company
    • Description: Valuation #111 unit costs gas and oil
      Dates: 1941
      Container: Volume 43
      Location: Montana Power Company
    • Description: Valuation #112-114 Manuscript structures (acct. 321, 322, 326, 342, 351, 371)
      Dates: 1937
      Container: Box/Folder 05-41 / 3-5
      Location: Montana Power Company
    • Description: Valuation #115 Manuscript structures (gas, steam, water etc.)
      Dates: 1937
      Container: Box/Folder 05-41 / 6
      Location: Montana Power Company
    • Description: Valuation #116 Structures, Great Falls
      Dates: 1941
      Container: Box/Folder 21-44 / 5
      Location: Montana Power Company
    • Description: Valuation #117-118 Manuscript production plant plants (accounts 232, 324, 325)
      Dates: 1937
      Container: Box/Folder 05-41 / 9-19
      Location: Montana Power Company
    • Description: Valuation #119 Transmission substation account
      Dates: 1941
      Container: Box/Folder 21-44 / 6
      Location: Montana Power Company
    • Description: Valuation #120 Distribution substation account
      Dates: 1941
      Container: Box/Folder 21-44 / 7
      Location: Montana Power Company
    • Description: Valuation #121-128 Manuscript (includes distribution substations, transmission plant, distribution plant, general plant, equipment) #127 checked out 1985
      Dates: 1941
      Container: Box/Folder 20-39 / 1-8
      Location: Montana Power Company
    • Description: Valuation #124 Manuscript, transmission plant
      Dates: 1941
      Container: Box/Folder 20-39 / 1-4
      Location: Montana Power Company
    • Description: Valuation #129 Manuscript, Gas transmission and distribution
      Dates: 1941
      Container: Box/Folder 05-37 / 1
      Location: Montana Power Company
    • Description: Valuation #130 Manuscript, equipment all acounts
      Dates: 1941
      Container: Box/Folder 05-37 / 2
      Location: Montana Power Company
    • Description: Valuation #131 all depts, all divisions, specific and undistributed costs
      Dates: 1941
      Container: Box/Folder 05-37 / 3
      Location: Montana Power Company
    • Description: Valuation #132 special undistributed construction and general costs
      Dates: 1941
      Container: Volume 45
      Location: Montana Power Company
    • Description: Valuation #133-135 depreciation studies by J.S. Hartt's organization
      Dates: 1941
      Container: Box/Folder 05-37 / 4-6
      Location: Montana Power Company
    • Description: Valuation #136 pole treatment studies [actually is list of poles]
      Dates: 1941
      Container: Box/Folder 05-37 / 7
      Location: Montana Power Company
    • Description: Valuation #137 cost analysis, transmission and distribution
      Dates: 1941
      Container: Volume 44
      Location: Montana Power Company
    • Description: Valuation #138-143 Quotations, companies 1-167 and index [re purchasing items from various companies]
      Dates: 1941
      Container: Box/Folder 20-81 / 1-6
      Location: Montana Power Company
    • Description: Valuation #142-158 blank inventory books
      Dates: 1941
      Container: Box/Folder 05-39 / 3-18
      Location: Montana Power Company
    • Description: Valuation #144-150a Quotations, companies 1-167 and index [re purchasing items from various companies]
      Dates: 1941
      Container: Box/Folder 20-85 / 1-6
      Location: Montana Power Company
    • Description: Valuation #180 Land appraisal by F. Norby
      Dates: 1941
      Container: Box/Folder 20-96 / 1
      Location: Montana Power Company
    • Description: Valuation #182 employee time sheets and travel expense
      Dates: 1943-1944
      Container: Box/Folder 20-96 / 2
      Location: Montana Power Company
    • Description: Valuation: method of arriving at cost of Butte Electric and Power Company
      Dates: undated
      Container: Box/Folder 20-48 / 42
      Location: Montana Power Company
    • Description: Valuation of the Montana Power Company and Constituent and Affiliated Companies: vol. 1-3 by William J. Hagenah [important: seems to be complete list of assets at time of consolidation] [duplicate]
      Dates: 1913
      Container: Box/Folder 21-2 / 1-3
      Location: Montana Power Company
    • Description: Valuation of the Montana Power Company and Constituent and Affiliated Companies: vol. 1-3 by William J. Hagenah [important: seems to be complete list of assets at time of consolidation] [original 1913, and 1939 copy]
      Dates: 1913, 1939
      Container: Box/Folder 21-27 / 1-6
      Location: Montana Power Company
    • Description: Valuation of the Montana Power Company and Constituent and Affiliated Companies: vol. 1-3 by William J. Hagenah [important: seems to be complete list of assets at time of consolidation] [original 1913, and 1939 copy] [duplicate]
      Dates: 1913, 1939
      Container: Box/Folder 21-54 / 1-3
      Location: Montana Power Company
    • Description: Valuation of the Montana Power Company and Constituent and Affiliated Companies: vol. 1-3 by William J. Hagenah [important: seems to be complete list of assets at time of consolidation]
      Dates: 1913
      Container: Box/Folder 20-99 / 5-7
      Location: Montana Power Company
    • Description: Valuation: Reproduction costs, vol. 1-5
      Dates: 1941
      Container: Box/Folder 20-54 / 1-5
      Location: Montana Power Company
    • Description: Valuation: Reproduction costs, vol. 6-7
      Dates: 1941
      Container: Box/Folder 20-77 / 1-2
      Location: Montana Power Company
    • Description: Volta Power Station, Inventory and reclassification of plant equipment
      Dates: 1939
      Container: Box/Folder 21-24 / 1
      Location: Montana Power Company
    • Description: Water Powers: Anaconda Copper Co study of steam costs
      Dates: 1908-1913
      Container: Box/Folder 20-12 / 8
      Location: Montana Power Company
    • Description: Water Powers: Cochrane re value of Thompson Falls land in 1913
      Dates: 1940
      Container: Box/Folder 20-12 / 15
      Location: Montana Power Company
    • Description: Water Powers: Cochrane study of power site values
      Dates: 1941
      Container: Box/Folder 20-12 / 29
      Location: Montana Power Company
    • Description: Water Powers: comparative hydro and steam costs, testimony of Cliff Woodward [notes only]
      Dates: 1942
      Container: Box/Folder 20-12 / 1
      Location: Montana Power Company
    • Description: Water Powers: compilation of literature re valuation
      Dates: 1941
      Container: Box/Folder 20-33 / 1
      Location: Montana Power Company
    • Description: Water Powers: computations KWH output and value of sites
      Dates: 1940
      Container: Box/Folder 20-12 / 23
      Location: Montana Power Company
    • Description: Water Powers: Conference re value of water power
      Dates: 1942
      Container: Box/Folder 20-12 / 14
      Location: Montana Power Company
    • Description: Water Powers: Cooper & Powelson report [mold]
      Dates: undated
      Container: Box/Folder 20-33 / 7
      Location: Montana Power Company
    • Description: Water Powers: Corette remarks on valuations
      Dates: undated
      Container: Box/Folder 20-12 / 26
      Location: Montana Power Company
    • Description: Water Powers: cost of power sites of MPC
      Dates: undated
      Container: Box/Folder 20-12 / 6
      Location: Montana Power Company
    • Description: Water Powers: discussion of value of water rights...by John C. Stevens
      Dates: undated
      Container: Box/Folder 20-33 / 2
      Location: Montana Power Company
    • Description: Water Powers: Elliott comparison with steam
      Dates: undated
      Container: Box/Folder 20-12 / 10
      Location: Montana Power Company
    • Description: Water Powers: estimate of value and amount paid for Madison and Missouri River power sites
      Dates: undated
      Container: Box/Folder 20-12 / 3
      Location: Montana Power Company
    • Description: Water Powers: estimate of value of power sites (1 dup; mold)
      Dates: undated
      Container: Box/Folder 20-33 / 6
      Location: Montana Power Company
    • Description: Water Powers: estimates of earnings, power requirements... [mold]
      Dates: undated
      Container: Box/Folder 20-33 / 8
      Location: Montana Power Company
    • Description: Water Powers: general information
      Dates: undated
      Container: Box/Folder 20-12 / 2
      Location: Montana Power Company
    • Description: Water Powers: Great Falls Power Company value of lands etc.
      Dates: 1910
      Container: Box/Folder 20-12 / 20
      Location: Montana Power Company
    • Description: Water Powers: Hagenah tentative valuation and studies
      Dates: 1913
      Container: Box/Folder 20-12 / 24-24a
      Location: Montana Power Company
    • Description: Water Powers: Hebgen memo re state control of water power
      Dates: 1913
      Container: Box/Folder 20-12 / 17
      Location: Montana Power Company
    • Description: Water Powers: Ketter report on development, cost and valuation of water powers [includes valuations for each site]
      Dates: n.d.
      Container: Box/Folder 20-12 / 30
      Location: Montana Power Company
    • Description: Water Powers: Larned comparison of water power with steam
      Dates: 1941
      Container: Box/Folder 20-12 / 11
      Location: Montana Power Company
    • Description: Water Powers: list of references
      Dates: undated
      Container: Box/Folder 20-12 / 22
      Location: Montana Power Company
    • Description: Water Powers: McElroy comparison of water power with steam
      Dates: 1940
      Container: Box/Folder 20-12 / 12
      Location: Montana Power Company
    • Description: Water Powers: Milwaukee Road trustees report re cost of electric and steam operation
      Dates: 1936
      Container: Box/Folder 20-12 / 7
      Location: Montana Power Company
    • Description: Water Powers: power plant land values
      Dates: 1913
      Container: Box/Folder 20-12 / 27
      Location: Montana Power Company
    • Description: Water Powers: power plant site values
      Dates: 1913
      Container: Box/Folder 20-12 / 28
      Location: Montana Power Company
    • Description: Water Powers: Pratt, A.C. temtimony on value for IRS
      Dates: 1923
      Container: Box/Folder 20-12 / 25
      Location: Montana Power Company
    • Description: Water Powers: president asks FPC to review power rates for war production firms [clipping]
      Dates: 1942
      Container: Box/Folder 20-12 / 5
      Location: Montana Power Company
    • Description: Water Powers: Salzman [label missing]
      Dates: undated
      Container: Box/Folder 20-12 / 13
      Location: Montana Power Company
    • Description: Water Powers: Senate Doc. 274 Hearings on development and control of water power
      Dates: 1911
      Container: Box/Folder 20-12 / 21
      Location: Montana Power Company
    • Description: Water Powers: Sid Barber study re water power rights
      Dates: undated
      Container: Box/Folder 20-12 / 9
      Location: Montana Power Company
    • Description: Water Powers: Site C value and cost
      Dates: undated
      Container: Box/Folder 20-12 / 19
      Location: Montana Power Company
    • Description: Water Powers: valuation, based on court decisions and regulatory commissions
      Dates: undated
      Container: Box/Folder 20-12 / 18
      Location: Montana Power Company
    • Description: Water Powers: valuation by J.S. Hartt
      Dates: 1943
      Container: Box/Folder 20-33 / 3
      Location: Montana Power Company
    • Description: Water Powers: valuation correspondence; annual depreciation
      Dates: 1943
      Container: Box/Folder 20-33 / 4
      Location: Montana Power Company
    • Description: Water Powers: valuation of water power by the comparative steam cost method [vol. 1, dup water damaged; mold]
      Dates: undated
      Container: Box/Folder 20-33 / 5
      Location: Montana Power Company
    • Description: Water Powers: value of power sites, including water rights
      Dates: 1942
      Container: Box/Folder 20-12 / 4
      Location: Montana Power Company
    • Description: Water Powers: Wisconsin Commission valuation
      Dates: 1916
      Container: Box/Folder 20-12 / 16
      Location: Montana Power Company
    • Description: Water rights
      Dates: undated
      Container: Box/Folder 20-13 / 12
      Location: Montana Power Company
    • Description: Water Utility: Missoula Water system improvements
      Dates: 1929-1937
      Container: Box/Folder 20-05 / 13
      Location: Montana Power Company
    • Description: Water Utility: Mosby-Fairview case
      Dates: 1966-1967
      Container: Box/Folder 20-05 / 14
      Location: Montana Power Company
    • Description: Water utility plant
      Dates: 1936-1942
      Container: Box/Folder 20-02 / 25
      Location: Montana Power Company
    • Description: Weekly progress reports
      Dates: 1939-1940
      Container: Box/Folder 20-19 / 15-16
      Location: Montana Power Company
    • Description: Witnesses and evidence file #01
      Dates: 1942
      Container: Box/Folder 20-98 / 20
      Location: Montana Power Company
    • Description: Work orders analysis
      Dates: 1942
      Container: Box/Folder 21-52 / 1-4
      Location: Montana Power Company
    • Description: ZZZ [lots of miscellaneous financial files, unevaluated]
      Dates: undated
      Container: Box/Folder 20-03 / 18-?
      Location: Montana Power Company

  • Allendale Irrigation Company

    • Description: Allendale Irrigation Company vs. State Water Conservation Board and Flint Creek Water Users Association
      Dates: 1942
      Container: Box/Folder 20-93 / 2
      Location: Allendale Irrigation Company

  • Beaverhead Transmission Company

  • Billings and Eastern Montana Power Company

  • Butte And Superior Mining Company

    • Description: Reports: Butte and Superior Mining Company mining equipment and supplies
      Dates: n.d.
      Container: Box/Folder 20-45 / 1
      Location: Butte And Superior Mining Company

  • Butte Division

    • Description: Maps
      Dates: undated
      Container: Box/Folder 20-14 / 4-5
      Location: Butte Division

  • Butte Electric And Power Company

    • Description: Analysis of material costs: Butte Electric and Power Company ] [2 vol.]
      Dates: 1907-1912
      Container: Box/Folder 20-65 / 4-5
      Location: Butte Electric And Power Company
    • Description: Butte Electric and Power Company Financial statements
      Dates: 1911-1912
      Container: Box/Folder 20-50 / 1
      Location: Butte Electric And Power Company
    • Description: Butte Electric and Power Company financial statements
      Dates: 1911-1912
      Container: Box/Folder 20-93 / 1
      Location: Butte Electric And Power Company
    • Description: Butte Electric and Power Company Financial statements [photocopies to FPC]
      Dates: 1908-1912
      Container: Box/Folder 20-50 / 5
      Location: Butte Electric And Power Company
    • Description: Butte Electric and Power Company reports, correspondence, statistics, etc. [originals]
      Dates: 1901-1912?
      Container: Box/Folder 05-34 / 9
      Location: Butte Electric And Power Company
    • Description: Group 02: Butte Electric and Power Company (includes historical files, minutes, lists of incorporators, accounts, acquisitions, predecessors, etc.)
      Dates: undated
      Container: Box/Folder 20-47 / 15-69
      Location: Butte Electric And Power Company
    • Description: Reports: Butte Electric and Power Company (incl. photos)
      Dates: n.d.
      Container: Box/Folder 20-45 / 2
      Location: Butte Electric And Power Company
    • Description: Reports: Butte Electric and Power Company on construction including wonderful photos
      Dates: n.d.
      Container: Box/Folder 20-18 / 4
      Location: Butte Electric And Power Company
    • Description: Reports: Butte Electric and Power Company to General Electric Company
      Dates: 1901
      Container: Box/Folder 20-48 / 43
      Location: Butte Electric And Power Company
    • Description: Steam power and water earnings and hydro maintenance
      Dates: undated
      Container: Box/Folder 20-02 / 2
      Location: Butte Electric And Power Company
    • Description: Temporary file on acquisitions by company
      Dates: 1905-1911
      Container: Box/Folder 05-31 / 12
      Location: Butte Electric And Power Company

  • Butte Lighting And Power Company

    • Description: Reports: Butte Lighting and Power Company to General Electric Company
      Dates: 1901
      Container: Box/Folder 20-48 / 44
      Location: Butte Lighting And Power Company

  • Butte Power Company

    • Description: Memorandum...on Water Powers of Montana, by Max Hebgen
      Dates: 1911
      Container: Box/Folder 05-31 / 5
      Location: Butte Power Company

  • Carolina Power And Light Company

    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [2 copies]
      Dates: 1937
      Container: Box/Folder 20-19 / 14
      Location: Carolina Power And Light Company

  • Clark Montana Realty Company

    • Description: Clark Montana Realty Company agreement between American Power and Light Co. re Missoula Public Service Co.
      Dates: 1928
      Container: Box/Folder 20-82 / 2
      Location: Clark Montana Realty Company

  • Electric Plant

    • Description: Account 343-363 distribution plant costs, substations
      Dates: 1936
      Container: Box/Folder 21-44 / 1-4
      Location: Electric Plant
    • Description: Account classification (6 big books in pencil)
      Dates: 1940-1943?
      Container: Box/Folder 221-8 / 3-9
      Location: Electric Plant
    • Description: Accounts
      Dates: undated
      Container: Box/Folder 20-09 / 9
      Location: Electric Plant
    • Description: Accounts
      Dates: 1936, n.d.
      Container: Box/Folder 20-59 / 1-7?
      Location: Electric Plant
    • Description: Accounts (summarizes all plants)
      Dates: 1930s?
      Container: Box/Folder 20-14 / 1
      Location: Electric Plant
    • Description: Accounts, details filed under reclassification costs [summary] 3 copies
      Dates: n.d.
      Container: Box/Folder 21-24 / 2-4
      Location: Electric Plant
    • Description: Classification of costs: distribution plant [copy 3-4]
      Dates: 1936-1949
      Container: Box/Folder 20-18 / 2
      Location: Electric Plant
    • Description: Classification of costs: distribution plant [pencil copy]
      Dates: 1941
      Container: Box/Folder 20-43 / 6
      Location: Electric Plant
    • Description: Classification of costs: general plant
      Dates: 1936-1949
      Container: Box/Folder 20-07 / 2
      Location: Electric Plant
    • Description: Classification of costs: production plant
      Dates: 1936-1949
      Container: Box/Folder 20-07 / 3
      Location: Electric Plant
    • Description: Classification of costs: transmission plant [copy 3-4]
      Dates: 1936-1949
      Container: Box/Folder 20-18 / 1
      Location: Electric Plant
    • Description: Classification of costs: transmission plant [copy 4]
      Dates: 1936-1949
      Container: Box/Folder 20-07 / 1
      Location: Electric Plant
    • Description: File 15 subsidiary companies: taxes, balance sheets historical documents etc.

      RESTRICTED

      Dates: 1912-1923?
      Container: Box/Folder 21-31 / 9
      Location: Electric Plant
    • Description: Reclassification of Electric Plant (original cost details)
      Dates: 1937; 1945
      Container: Box/Folder 20-80 / 6
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 1-6
      Dates: 1937
      Container: Box/Folder 20-38 / 1-6
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 1-6 [2 copies of vol. 1]
      Dates: 1937
      Container: Box/Folder 20-62 / 1-7
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 1-6
      Dates: 1937
      Container: Box/Folder 20-97 / 1-6
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 1-6
      Dates: 1937
      Container: Box/Folder 21-30 / 1-6
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 1-6
      Dates: 1937
      Container: Box/Folder 05-43 / 1-6
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 3-6
      Dates: 1937
      Container: Box/Folder 20-99 / 1-4
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 6
      Dates: 1937
      Container: Box/Folder 20-80 / 2
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [1 copy]
      Dates: 1940
      Container: Box/Folder 20-47 / 1
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [1 copy]
      Dates: 1940
      Container: Box/Folder 20-48 / 40
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [2 copies]
      Dates: 1940
      Container: Box/Folder 20-60 / 1
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [2 copies]
      Dates: 1940
      Container: Box/Folder 21-25 / 8-9
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [3 copies]
      Dates: 1940
      Container: Box/Folder 20-15 / 21
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [about 20 copies: appear to be 2 or more versions, check!]
      Dates: 1940
      Container: Box/Folder 20-71 / 1
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "B", "E", "F", "G", "G"
      Dates: 1937
      Container: Box/Folder 20-94 / 3
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: Statements "B", "E", "F", "G", "G" [2 copies]
      Dates: 1937
      Container: Box/Folder 20-07 / 25?
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: vol. 104 ["copy 20"]
      Dates: 1941
      Container: Box/Folder 05-39 / 19-22
      Location: Electric Plant
    • Description: Reclassification of Electric Plant: working papers
      Dates: 1937
      Container: Box/Folder 05-40 / 41?
      Location: Electric Plant
    • Description: Sub-station transformers inventory
      Dates: 1942
      Container: Box/Folder 20-14 / 3
      Location: Electric Plant
    • Description: Taxes accrued

      RESTRICTED

      Dates: 1913-1943
      Container: Box/Folder 20-02 / 1
      Location: Electric Plant

  • Glacier Production Company

    • Description: Glacier Production Company: Analysis of plant investment, R.M. Boykin, EBASCO
      Dates: 1936
      Container: Box/Folder 20-17 / 12
      Location: Glacier Production Company
    • Description: Glacier Production Company: Analysis of retirement
      Dates: 1913-1943
      Container: Box/Folder 20-02 / 4
      Location: Glacier Production Company
    • Description: Glacier Production Company: Depreciation summary: plants and equipment
      Dates: 1931-1944
      Container: Box/Folder 20-17 / 1-9
      Location: Glacier Production Company
    • Description: Glacier Production Company: Freight settlement statements
      Dates: 1939
      Container: Box/Folder 20-09 / 2
      Location: Glacier Production Company
    • Description: Glacier Production Company: Land lease
      Dates: undated
      Container: Box/Folder 20-03 / 6
      Location: Glacier Production Company
    • Description: Glacier Production Company miscellaneous files
      Dates: 1930s
      Container: Box/Folder 05-40 / 21-40?
      Location: Glacier Production Company
    • Description: Glacier Production Company: Reports to PSC
      Dates: 1955
      Container: Box/Folder 20-17 / 13-15
      Location: Glacier Production Company
    • Description: Glacier Production Company: SEC material and working papers
      Dates: 1944
      Container: Box/Folder 20-17 / 11
      Location: Glacier Production Company
    • Description: Glacier Production Company: Tax cost of properties

      RESTRICTED

      Dates: 1944
      Container: Box/Folder 20-17 / 10
      Location: Glacier Production Company

  • Great Falls Power Company

    • Description: Analysis of material costs: Great Falls Power Company
      Dates: 1910-1917
      Container: Box/Folder 20-65 / 4
      Location: Great Falls Power Company
    • Description: Articles of incorporation
      Dates: 1910
      Container: Box/Folder 20-17 / 16
      Location: Great Falls Power Company
    • Description: Capital earnings
      Dates: 1901-1920
      Container: Box/Folder 20-03 / 5
      Location: Great Falls Power Company
    • Description: Capital stock (how MPC acquired)
      Dates: undated
      Container: Box/Folder 20-03 / 3
      Location: Great Falls Power Company
    • Description: File 41a Great Falls Power Company photographs
      Dates: 1927
      Container: Box/Folder 21-31 / 14
      Location: Great Falls Power Company
    • Description: Financial statements
      Dates: 1911-1912
      Container: Box/Folder 20-50 / 4
      Location: Great Falls Power Company
    • Description: MPC, Great Falls Power Company, and Thompson Falls Power
      Dates: 1915
      Container: Box/Folder 20-03 / 12
      Location: Great Falls Power Company
    • Description: Reports: Great Falls Power Company (incl. photos etc.) (2 copies)
      Dates: n.d.
      Container: Box/Folder 20-45 / 4
      Location: Great Falls Power Company
    • Description: Reports: Great Falls Power Company (Power Development) by Max Hebgen
      Dates: 1910
      Container: Box/Folder 20-45 / 5
      Location: Great Falls Power Company
    • Description: Subsidiaries: earnings
      Dates: 1908
      Container: Box/Folder 20-03 / 4
      Location: Great Falls Power Company

  • Great Falls Townsite Company

  • Great Falls Water Power And Townsite Company

  • Great Falls Water Power Company

  • Havre Electric Company

    • Description: Acquisition file
      Dates: 1903-1914
      Container: Box/Folder 20-13 / 18-19
      Location: Havre Electric Company

  • Helena Electric Railway Co.

    • Description: Correspondence and requisitions [letterpress book: originals, only a few pages used, water damaged]
      Dates: 1892
      Container: Box/Folder 05-30 / 1
      Location: Helena Electric Railway Co.

  • Helena Gas And Electric Company

    • Description: Analysis of material costs: Helena Gas and Electric Company
      Dates: 1927-1929
      Container: Box/Folder 20-65 / 3
      Location: Helena Gas And Electric Company
    • Description: Helena Gas and Electric Company reorganization and story of acquisition
      Dates: 1928
      Container: Box/Folder 20-82 / 3-4
      Location: Helena Gas And Electric Company

  • Helena Gas Light And Coke Company

    • Description: Correspondence [letterpress books: originals! precedes volume in MC 268]
      Dates: 1885-1891
      Container: Box/Folder 05-30 / 2-3
      Location: Helena Gas Light And Coke Company

  • Helena Power Tranmission Company

  • Holter Development

    • Description: File 22 Holter Development (historical documents etc.)
      Dates: undated
      Container: Box/Folder 21-31 / 10
      Location: Holter Development

  • Kerr Dam

    • Description: Kerr Dam: accounting requirements and procedures
      Dates: 1951
      Container: Box/Folder 20-26 / 1-2
      Location: Kerr Dam
    • Description: Kerr Dam: construction reports, daily
      Dates: 1953-1954
      Container: Box/Folder 20-25 / 23-25
      Location: Kerr Dam
    • Description: Kerr Dam: invoices
      Dates: 1953-1954
      Container: Box/Folder 20-25 / 1-22
      Location: Kerr Dam
    • Description: Kerr Dam invoices
      Dates: 1953
      Container: Box/Folder 20-30 / 6-27
      Location: Kerr Dam
    • Description: Kerr Dam progress reports
      Dates: 1952-1955
      Container: Box/Folder 20-26 / 17
      Location: Kerr Dam
    • Description: Kerr Dam unit #3: cancelled payroll checks
      Dates: 1952-1955
      Container: Box/Folder 20-83 / 1-2
      Location: Kerr Dam
    • Description: Kerr Dam unit #3: payroll & travel vouchers [unfoldered]
      Dates: 1952-1955
      Container: Box/Folder 20-84 /
      Location: Kerr Dam
    • Description: Kerr Dam Unit 2 cost estimate
      Dates: undated
      Container: Box/Folder 21-12 / 9
      Location: Kerr Dam
    • Description: Kerr Dam Unit 3 work progress
      Dates: 1954-1955
      Container: Box/Folder 21-12 / 10
      Location: Kerr Dam
    • Description: Kerr Dam Unit 3 work progress
      Dates: 1951-1953
      Container: Box/Folder 21-26 / 1-2
      Location: Kerr Dam
    • Description: Kerr Development: accounting system
      Dates: 1948?
      Container: Box/Folder 21-23 / 8
      Location: Kerr Dam
    • Description: Kerr Hydro Plant recapitulation of expenditures by account
      Dates: 1939-1940
      Container: Box/Folder 21-26 / 3
      Location: Kerr Dam
    • Description: Kerr Project: inventory cards
      Dates: undated
      Container: Box/Folder 20-79 / 9
      Location: Kerr Dam
    • Description: Kerr Project: invoices
      Dates: 1953
      Container: Box/Folder 20-79 / 10
      Location: Kerr Dam
    • Description: Kerr Unit 3???? order book
      Dates: 1956-1958
      Container: Box/Folder 21-26 / 6
      Location: Kerr Dam

  • Madison River Power Company

    • Description: Agreement with Benepe-Berglund [moldy]
      Dates: 1910
      Container: Box/Folder 05-31 / 15
      Location: Madison River Power Company
    • Description: Analysis of material costs: Madison River Power Company
      Dates: 1905-1912
      Container: Box/Folder 20-65 / 2
      Location: Madison River Power Company
    • Description: Butte Electric Railway company and Columbia Gardens
      Dates: undated
      Container: Box/Folder 05-34 / 7
      Location: Madison River Power Company
    • Description: Contracts
      Dates: 1905-1907
      Container: Box/Folder 20-13 / 15
      Location: Madison River Power Company
    • Description: Financial statements
      Dates: 1911-1912
      Container: Box/Folder 20-50 / 3
      Location: Madison River Power Company
    • Description: Madison River Power Company acquisition
      Dates: undated
      Container: Box/Folder 20-82 / 5-6
      Location: Madison River Power Company
    • Description: Reclassification: data on Butte Branch consumption of Madison River Power Company #20.48
      Dates: 1912
      Container: Box/Folder 20-05 / 28
      Location: Madison River Power Company

  • Missoula Light And Water Company

  • Missoula Public Service Company

    • Description: Analysis of material costs: Missoula Public Service Company; Missoula Light and Water Company
      Dates: 1917-1929
      Container: Box/Folder 20-66 / 1
      Location: Missoula Public Service Company
    • Description: Analysis of material costs: Missoula Public Service Company; Missoula Light and Water Company
      Dates: 1917-1929
      Container: Box/Folder 20-65 / 1
      Location: Missoula Public Service Company

  • Missouri River Electric And Power Company

  • Missouri River Power Company

    • Description: Agreement with Colusa-Parrot Mining and Smelting Company
      Dates: 1906
      Container: Box/Folder 05-31 / 16
      Location: Missouri River Power Company
    • Description: Analysis of material costs: Missouri River Power Company
      Dates: 1900-1908
      Container: Box/Folder 20-66 / 2
      Location: Missouri River Power Company

  • Montana Dakota Utilities

    • Description: Montana Dakota Utilities Sheridan Division data, maps etc.
      Dates: 1940s- 1950s
      Container: Box/Folder 21-20 / 8-9
      Location: Montana Dakota Utilities

  • Montana Power Gas Company

    • Description: Group 13: includes data re acquisition by MPC, summary of plant investment, retirement reserve, Glacier Production Company
      Dates: 1932-1936, n.d.
      Container: Box/Folder 20-06 / 110-114
      Location: Montana Power Gas Company

  • Phoenix Engineering Company

    • Description: Flathead Hydro-Electric Development: concrete reports, soil testing reports, humidity and absorption, lab drawings, pumpcrete, cost estimates, tracings, etc. etc.
      Dates: 1938
      Container: Box/Folder 20-74 / 18-39
      Location: Phoenix Engineering Company
    • Description: Flathead Hydro-Electric Development: invoices
      Dates: 1937
      Container: Box/Folder 20-74 / 40-44
      Location: Phoenix Engineering Company
    • Description: Flathead Hydro-Electric Development: FPC monthly reports
      Dates: 1936-1938
      Container: Box/Folder 20-74 / 14-15
      Location: Phoenix Engineering Company
    • Description: Flathead Hydro-Electric Development: weekly progress reports to MPC
      Dates: 1936-1938
      Container: Box/Folder 20-74 / 16-17
      Location: Phoenix Engineering Company

  • Phoenix Utility Company

    • Description: Account classification
      Dates: 1931-1932
      Container: Box/Folder 20-26 / 14-16
      Location: Phoenix Utility Company
    • Description: Flathead audited vouchers
      Dates: 1931-1933
      Container: Box/Folder 21-12 / 3
      Location: Phoenix Utility Company
    • Description: Flathead construction cost
      Dates: 1931-1933?
      Container: Box/Folder 21-12 / 4
      Location: Phoenix Utility Company
    • Description: Flathead Hydro-Electric Development purchase orders
      Dates: 1930-1936
      Container: Box/Folder 20-74 / 1-12
      Location: Phoenix Utility Company
    • Description: Flathead operating journal
      Dates: 1930-1933?
      Container: Box/Folder 21-12 / 6
      Location: Phoenix Utility Company
    • Description: Flathead operating summary cash
      Dates: 1930-1933?
      Container: Box/Folder 21-12 / 7
      Location: Phoenix Utility Company
    • Description: Flathead operation monthly reports
      Dates: 1930-1931
      Container: Box/Folder 20-26 / 9
      Location: Phoenix Utility Company
    • Description: Flathead trial balance
      Dates: 1931-1933?
      Container: Box/Folder 21-12 / 5
      Location: Phoenix Utility Company
    • Description: Flathead voucher register
      Dates: 1930-1932
      Container: Box/Folder 21-12 / 8
      Location: Phoenix Utility Company
    • Description: Kerr Dam construction equipment record
      Dates: 1930-1931
      Container: Box/Folder 20-26 / 10-13
      Location: Phoenix Utility Company
    • Description: Kerr Dam invoices
      Dates: 1936
      Container: Box/Folder 20-30 / 28-?
      Location: Phoenix Utility Company
    • Description: Phoenix Utility Company miscellaneous files
      Dates: 1930s
      Container: Box/Folder 05-40 / 1-20?
      Location: Phoenix Utility Company
    • Description: Project 2188 Holter plant
      Dates: 1940s- 1950s
      Container: Box/Folder 21-20 / 1
      Location: Phoenix Utility Company
    • Description: Project 2188 Missouri-Madison plants various analyses (includes summaries of claimed and book costs, etc.)
      Dates: 1940s-1950s
      Container: Box/Folder 20-31 / 1-3
      Location: Phoenix Utility Company
    • Description: Project 2188 plants (Holter, Hauser, etc.) working papers etc.
      Dates: 1940s- 1950s
      Container: Box/Folder 21-21 /
      Location: Phoenix Utility Company
    • Description: Project 2188 plants (Holter, Hauser, etc.) working papers etc.
      Dates: 1940s- 1950s
      Container: Box/Folder 21-21 /
      Location: Phoenix Utility Company
    • Description: Project 2188 Rainbow and Ryan various analyses (includes summaries of claimed and book costs, etc.)
      Dates: 1940s-1950s
      Container: Box/Folder 21-15 / 3-8
      Location: Phoenix Utility Company
    • Description: Project 2543 Milltown original cost working papers etc
      Dates: 1940s-1950s
      Container: Box/Folder 21-15 / 9
      Location: Phoenix Utility Company
    • Description: Trial balances
      Dates: 1931-1932
      Container: Box/Folder 20-26 / 3-8
      Location: Phoenix Utility Company

  • Plains Electric Water Properties

  • Thompson Falls Power Development

  • Union Electric Company

    • Description: Analysis of material costs
      Dates: 1941
      Container: Box/Folder 20-09 / 5
      Location: Union Electric Company
    • Description: Beaverhead transmission service
      Dates: undated
      Container: Box/Folder 20-03 / 14
      Location: Union Electric Company
    • Description: Depreciation study
      Dates: 1941
      Container: Box/Folder 20-09 / 3-4
      Location: Union Electric Company
    • Description: Hydro S82
      Dates: undated
      Container: Box/Folder 20-03 / 16
      Location: Union Electric Company
    • Description: Lovell Hydroelectric palnt
      Dates: undated
      Container: Box/Folder 20-03 / 13
      Location: Union Electric Company
    • Description: Plant in service
      Dates: 1939
      Container: Box/Folder 20-03 / 15
      Location: Union Electric Company

  • Union Oil Company

    • Description: Audits
      Dates: 1945-1949, 1954-1955
      Container: Box/Folder 20-05 / 3-10
      Location: Union Oil Company

  • Utah Construction Company

    • Description: Payroll distribution [no names]
      Dates: 1947-1949
      Container: Box/Folder 20-30 / 1-5
      Location: Utah Construction Company

  • Washington Water Power Company

    • Description: Reclassification of Electric Plant: Statements "A" to "I" Inclusive (includes history of electrical power generation etc etc. EXCELLENT [2 copies]
      Dates: 1937
      Container: Box/Folder 20-19 / 13
      Location: Washington Water Power Company

Finding aid prepared by Ellie Arguimbau
2012

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