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 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.
The Kenneth Thompson Collection includes Great Northern seniority lists from 1956 and 1960, the Empire Builder schedule for 1960, and condensed Great Northern passenger schedules for 1962 and 1964.
The Ken Iverson collection includes 19 Burlington Northern maps of the railroad in 19 western states of the United States, and a Reservation Tower (Tacoma, Washington) track and switch operation chart.