The Lance Lassen Collection takes in one box of blueprints, one box of miscellaneous manuals and a bag of drawings and items chiefly from the Northern Pacific Railroad Company and the Spokane, Portland, and Seattle Railway.
The Kurt Armbruster Collectionis is comprised of photographs, books,audio cassettes of conversations with railroad employees and CDs on Pacific Northwest railroad subjects.
The Kristi and Tom Hamre Collection consists of color photographs of Pacific Northwest railroad subjects taken in the 1990's and 2000's by the Hamre's.
The King Agriculture Museum Collection consists of a photo of Puget Sound Flouring Mill workers in front of the mill and the Stadium Telegraph Office. Boland Photo E1388-Tacoma-180 degree photograph.
The Kermit Hedman Collection is comprised of public timetable, 14 employee timetables (duplicates), a timetable for the St Paul and Pacific Railroad dated 1866, diner menus, a United States map issued by the Great Northern Railway, rules, fares, brake equipment books, and two Official List of Officers, Agents and Stations books dated 1952 and 1959.
The Kent Sullivan Collection consists of 1 poster from the Northern Pacific Railroad Company and one video tape of the television show "Exploration Northwest" entitled "Logging and Railroad History", Volume 209, produced in 1978.