The Fred Wenzel Collection includes logging photographs, time books for L. M. Wray while working at the Northern Pacific Railroad Terminal, time books for R. G. Wenzel while working on the Union Pacific Railroad, miscellaneous Burlington Northern Railroad and Union Pacific Railroad timetables, and various union constitutions.
The Gail James collection includes "Kinsey, Photographer: The Locomotive Portraits" by Rodolfo Petschek and Dave Bohn, "Steam Locomotives" by Lynn M. Stone and "Classic Steam Trains" by Colin Garratt.
The Gary Stengle Collection includes Northern Pacific steam locomotive photographs, a public timetable, ephemera, artifacts and the April, 1988 issue of "Freight Cars Journal".
The Gary Weisz Collection consists of 2 compact discs of archaeological research pertaining to the Clark Fork Division of the Northern Pacific Railroad between 1881 and 1883.