Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- ItemWWAPC0432 - Chicago Milwaukee St. Paul and Pacific Railroad diesel locomotive number 25 at Maple Valley, Washington in 1979.
- ItemCRF_Ainsworth107 - Milwaukee Road EMD 30A and two other diesel locomotives at Cle Elum, Washington, undated.
- ItemCRF_Ainsworth108 - Milwaukee Road EMD 30A and two other diesel locomotives at Cle Elum, Washington, undated.
- ItemCRF_Ainsworth120 - Three Milwaukee Road diesel locomotives near Boylston, Washington, circa 1971.
- ItemWWA-0218 - Eastbound Olympian Hiawatha near Ragnar, Washington in 1961.
- ItemWWA-0365 - Milwaukee Road diesel locomotive Number 5009 leading a freight train at Boylston, Washington, undated.
- ItemWWA-0395 - Milwaukee Road diesel locomotive Number 367 at Othello, Washington, undated.
- ItemWWA-0396 - Milwaukee Road diesel locomotive Number 326 at Othello, Washington in 1965.