Oral history interview with Henry E. Haefner conducted by Charles Digregorio on July 9, 1979. Haefner was a ranger in the Siskiyou National Forest from 1909 to 1925.

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.

Oral history interviews and written recollections gathered by the Oregon Historical Society after the eruption of Mount St. Helens on May 18, 1980, as part of a project to preserve memories of the mountain before it erupted. Participants in the project include lodge owners and employees, timber workers, and a fire lookout; visitors to lodges and youth camps near the mountain; mountaineers, hikers, and skiers; and a geologist who studied Mount St. Helens.

Oral history interview with John Osborn, conducted by Clark Hansen in two sessions, on April 8 and April 12, 1999, as part of the Columbia River Dissenters Oral History Series. Osborn discusses connections between the history of the Northern Pacific Railroad land grants, logging practices of companies such as Weyerhaeuser, and heavy metal pollution in the Pacific Northwest.

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.

Collection consists of account books, 1917-1918; rosters of the members of the 86th Squadron, Spruce Production Division, 1918; pictorial review of the Spruce Production Division, 1917-1919; and miscellaneous documents and ephemera, 1917-1919.