Hennen Jennings papers, 1874-1930

Overview of the Collection

Jennings, Hennen, 1854-1920.
Hennen Jennings papers
1874-1930 (inclusive)
15 cubic feet (33 boxes + oversize)
Collection Number
American Heritage Center, University of Wyoming
American Heritage Center
University of Wyoming
1000 E. University Ave.
Dept. 3924
Laramie, WY
Telephone: 3077663756
Access Restrictions
Access Restrictions

There are no access restrictions on the materials for research purposes, and the collection is open to the public.


Historical NoteReturn to Top

Hennen Jennings was a mining engineer. He graduated from Harvard in 1877 and worked in gold and quicksilver mines in California for the next ten years. In 1887 he went to Venezuela. Two years later he moved on to South Africa, where he was a consulting engineer for the Rand mines in the Transvaal district. He was credited with developing South African gold mining into a commercially viable industry. After returning to the United States in 1905, he consulted for the Conrey Placer Mining Company of Ruby, Montana, which was largely owned by Harvard. He also consulted for the U.S. Bureau of Mines. He was a founder and director of the Research Corporation, a stock company formed in New York to support scientific and technical advances.

Content DescriptionReturn to Top

The collection contains correspondence and reports reflecting Hennen Jennings's career as a mining engineer and consultant in the United States, Venezuela, and South Africa. Also included are diaries (1874, 1903-1904, 1911-1915), photographs of mining sites and equipment, financial records, legal papers, speeches, news clippings, and scrapbooks. In addition there are notebooks of Jennings's classwork while at Harvard; medals which he received honoring him for his work; and a minute book (1912-1916) of the board of directors of the Research Corporation.

Use of the CollectionReturn to Top

Restrictions on Use

Copyright Information

The researcher assumes full responsibility for observing all copyright, property, and libel laws as they apply.

Preferred Citation

Preferred Citation

Item Description, Box Number, Folder Number, Collection Name, Collection Number, American Heritage Center, University of Wyoming.

Administrative InformationReturn to Top

Related Materials

Related Materials

There are no known other archival collections created by Hennen Jennings at the date of processing.

Acquisition Information

Acquisition Information

Processing Note

Processing Information

Names and SubjectsReturn to Top

Subject Terms

  • Gold mines and mining -- South Africa.
  • Mines and mineral resources -- California.
  • Mines and mineral resources -- Montana.
  • Mines and mineral resources -- Venezuela.

Corporate Names

  • Conrey Placer Mining Company.
  • Harvard University.
  • Research Corporation.