Claussen & Claussen was an architectural firm in Portland, Oregon, comprised of brothers Wiiliam E. Claussen (d. 1953) and H. Fred Claussen (1880-1942).
Collection includes: Miscellaneous architectural plan primarily for buildings in Portland, Oregon, ca. 1900-1942.
Contains material designated Mss 3016-1 through Mss 3016-102
This collection is unprocessed. For information contact the Oregon Historical Society Research Library at libreference@ohs.org, or 503-306-5240.
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Claussen & Claussen Papers, Mss 3016, Oregon Historical Society Research Library.