The Drumheller Family Papers contain ephemera related to the pioneer Drumheller family and their related businesses. These papers, which date from 1862 through 1976, also contain business documents, abstract of title, and a scrapbook of newspaper articles about the journey westward.

The Gardner amd Company Records contains materials related to the history of Gardners department store of Walla Walla, Washington and its predecessor, Schwabacher Brothers. These records, which date from 1878 through 1980 contains scrapbooks, shareholder records, and family and company histories. These records, which date from 1878 through 1980, also contain newspaper editions.

The John F. McLean Collection consists of McLean Grocery Company store journals and ledgers, general financial records, and three family photographs. This collection dates from 1891 to 1914.

The Pacific Northwest Bell Telephone Company Collection, which dates from 1949 to 1987, houses material related to the Pacific Northwest Bell Telephone Company, a telephone company that served Oregon, Washington, and northern Idaho from 1961 to 1991. The collection contains newspaper articles, photographs, company newsletters, and periodicals related to the employees of the Walla Walla office.

The Railroads Collection contains materials related to railroads operating in the Northwest region of the United States.

The Reynolds family papers contain materials, records, and ephemera from the Reynolds’s business and personal life. This collection, which dates from 1887 through 1985, also contains legal deeds, court decisions, and invoices.

The Sherwod Family Papers contains materials related to brothers Donald and Cameron Sherwood, both graduates of Whitman College, and their involvement with Whitman College, Walla Walla, Washington and the Pacific Northwest.

The Walla Walla Business Records contains materials related to the conducting of business by Walla Walla, Washington businessmen.

The Walla Walla Valley Railroad Company Records contains materials related to the operation of the Walla Walla Valley Railroad Company.

The Wenaha Woolgrowers Association Records contains materials related to the Wenaha Woolgrowers Association of Walla Walla, Washington.