The George Simonson Collection includes documents on the Milwaukee Road, Burlington Northern, Nothern Pacific, SP&S, Union Pacific, Pacific Coast Railroad, Great Northern and other railroads. Railroad and model railroad magazines are also included, and books on railroad subjects.
The George Leu Collection includes books, locomotive photograph, and material on Wellington, Washington; the Wellington avalanche, Great Northern Railway seniority rosters, and a Great Northern Railway Cascade Tunnel article.
The George Fischer Collection includes Great Northern Railway photos in the Cascade Mountains, an 1890 Great Northern Railway timetable, a 1936 Great Northern Railway report information, annual reports for the Great Northern Railway and Milwaukee Road, photographs of the St. Paul, Minneapolis and Manitoba Railway and Great Northern Railway documents.
The Elizabeth McKee Collection includes photographs from the Interstate Commerce Commission Survey of the Great Northern Railway in 1915 and the Panama Pacific International Exhibition.
The Edmund Von Nordeck collection is comprised of Great Northern timetables, Great Northern Railway Historical Society "Goat" magazines, a Burlington Northern pillowcase and 2 styles of headrests from the Northern Pacific.
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.