Railroad Archives Online
- CollectionD0197 - Maple Valley Historical Society Collection
- Series002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- ItemP11.14.83 - Chicago, Milwaukee, St. Paul and Pacific Railroad steam locomotive number 59 near Maple Valley, Washington in 1951.
- ItemP11.14.84 - Chicago, Milwaukee, St. Paul and Pacific Railroad steam locomotive number 59 at Spokane, Washington, circa 1951.
- ItemP1985.105.01-010 - Chicago Milwaukee and Puget Sound Railroad steam locomotive number 935 at Maple Valley, Washington, circa 1910.