The Gordon D. and Rowena L. Alcorn Papers, which date from 1964 to 1996, contain personal material related to Gordon D. and Rowena L. Alcorn. The collection includes articles, newspaper clippings, and correspondence related to Gordon D., a biologist, naturalist, environmentalist and author, and Rowena L. Alcorn, a painter and author.

The Association of Northwest Steelheaders Records document the Walla Walla chapter of the organization, which is dedicated to sustaining the Steelhead salmon population.. The records date from 1963 to 1966, and consist of materials such as minutes, correspondence, articles, proposals, and brochures.

This collection contains materials related to the proposed Dayton Dam and the Touchet Division, Walla Walla Project from Whitman College geology professor, Robert Carson. These papers, which date from 1976 through 1977, also consist of correspondence, newspaper clippings and reports as well as photographs and materials relating to the Roo Rat Society.