The Dwight Thompson Collection includes 6 issues of the Great Northern Railway Historical Society (GNRHS) "Goat" magazine, 16 GNRHS reference sheets, the September 1995 issue of "Northwest Railfan", and the SP&S Historical Society magazine "The Northwest's Own Railway for Spring, 1989.
The Duane Durr Collection includes a plexiglass Northern Pacific logo and a Northern Pacific Railroad stencil, plans of Dilworth, Minnesota roundhouse, track maps, title plat books, and other Northern Pacific Railroad items.
The Duane Cramer collection comprises SP&S trainmens' train registers for portions of 1937, 1938 and 1940, and SP&S job list books for 1925 to 1930 and 1931 to 1932.
The Drew Miller Collection amalgamates books on various railroad topics and photographs of the last Northern Pacific Railroad Company train to Gray's Harbor (Wash.) on February 18, 1956.
The Douglas Cummings Collection includes Great Northern Railway daily reports for Skykomish, Washington for the early to mid 1940's, 1929 daily reports, two Great Northern Railway locomotive drawing books. Burlington Northern Railroad Locomotive assignment lists for September 1978, March 1979, March 1981, February 1982, October 1982, revised Ownership of Diesels dated 1/1/1970, Timetable #4, Denver Division dated 10/27/1991, Special Instructions #12 dated 11/16/1980 and some other Burlington Northern Railroad papers.
The Douglas Auburg Collection consists of drawings of the Wishram, Washington roundhouse, photographic negatives, a photo page of wooden railroad bridges and another of the Wishram, Washington roundhouse.
The Doug Wingfield Collection consists of a series of train orders and clearances from the Great Northern depot at Eureka, Montana from 1907, and 2 computer discs of color photographs taken by Doug Wingfield of Great Northern, Northern Pacific and Spokane, Portland, and Seattle (SP&S) equipment taken in 1968, 1969 and 1970 in the Spokane, Washington, Missoula, Montana and Whitefish, Montana areas.
