The Mac McColloch collection includes 1 spiral-bound photo album of locations on the Norhtern Pacific Railroad Company's Palouse & Lewiston and Central Washington branches operated by Watco, dated March 9-10, 2004; 1 spiral-bound photo album of Palouse WA; the Northern Pacific's Washington, Idaho, Montana line; and the abandoned Genesee branch; and 22 books on railroad operations, operation of railroad equipment and safety related materials.
The Mark Gelhaus Collection includes documents, timetables, operating instructions, equipment manuals, maps, equipment registers, photographs and sound recordings produced between 1885 and 1994. Railroad represented include the Northern Pacific, Burlington Northern, Union Pacific, Southern Pacific, Milwaukee Road, Great Northern and other railroads. Many of these materials were accumulated by Michael D. Gelhaus and Al Bennett.
The Martin J. Lins Collection includes photographs of her uncle, Martin J. Lins, Chief Special Agent of the Great Northern, menus from President Franklin Roosevelt's trip to Glacier Park, Montana on August 3-7, 1934, and Martin Lin's Certificate of Annuity on his retirement.
The Marty Johnston Collection is comprised of photographs of railroad subjects from the first half of the 1900's with emphasis on the Great Northern and other northwestern railroads. Some timetables, maps and newspaper clippings are also included. Materials were collected by Robert Pearson, Mr. Johnston's grandfather.
The Melvin Iszley Collection consists of documents from several Northwest railroads, including maps, plats, engineering drawings, and timetables from the Northern Pacific, the Great Northern, the Spokane, Portland and Seattle, the Burlington Northern, and several other railroads, and operating manuals for a variety of diesel locomotives.
The Michael Denuty Collection consists of commercially published books relating to railroad history, including material on the Great Northern Railway,Northern Pacific, Milwaukee Road, and Spokane, Portland and Seattle Railway.
The Norm Keyes Collection is comprised of black and white prints of Great Northern Railway steam engines, work equipment, approximately 3650 photographic slides, and film negatives - approximately 5500. A limited number of photographs of equipment from other railroads and logging railroads are included.
The Oscar Peterson collection includes a collection of Great Northern Railway Company (U.S.) and other railroad documents. Railroad operating documents include timetables from the Great Northern Railway Company (U.S.) and Canadian Pacific Railroad Railway Company.