The John Fredrickson Collection is comprised primarily of railroad enthusiast and model railroad magazines dated between 1962 and 2011. It also includes 2 books on railroads in Washington state and a map of the Wisconsin Central Railroad Company.
The John Gardner Collection is comprised of steam locomotive roster photos, electric locomotive roster photos, diesel locomotive roster photos, gas electric locomotive photos, work equipment photos, traction photos, and West photos.
The John Heider Collection consists of documents retrieved from the King Street Station in Seattle, Washington including contracts, correspondence and drawings.
The John Hilliard Collection includes 13 photographs of a Northern Pacific wreck and the Livingston, Montana workshops, and 44 photographs of snow plows, retirements and train wrecks from the Ray Spanring collection.
The John Lubetkin Collection is comprised of published books on railroad subjects, railroad stock and bond certificates from the 19th and 20th centuries, and research materials gathered by Mr. Lubetkin for his non-fiction and historical fiction works, including "Jay Cooke's Gamble: The Northern Pacific Railroad, The Sioux and The Panic of 1873".
The John Ludwig Collection is 9 scans of engineering drawings of the King Street Station, Seattle (Wash.). Originals were scanned at the Pacific Northwest Railroad Archive and the scans retained. The originals were returned to Mr. Ludwig.