Theodore Patrick Flynn (1891-1954) was an equipment development engineer for the U.S. Forest Service, Region 6, and director of the USFS Equipment Laboratory in Portland, Oregon, 1936-1949. Collection includes biographical materials, patents, blueprints, specifications, reports, photographs, clippings, a photo album, and memorabilia regarding design of specialized equipment used in forestry and construction work, particularly for controlling forest fires.

Unprocessed collection including materials relating to forestry, forest management, logging, and sawmills in the Pacific Northwest, as well as certificates and diplomas. Stuart Moir (1892-1961) was chief forester for the Western Pine Association, forest counsel for the Western Forestry & Conservation Association, and consulting forester for Lake Oswego, Oregon.

Unprocessed collection consisting of annual reports, inventory, and sales analysis statistics for British Columbia, Columbia River, Gray's Harbor and Puget Sound districts, 1934-1962.