Railroad Archives Online
- CollectionD0197 - Maple Valley Historical Society Collection
- Series004 - Pacific Coast Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2004 - Railroad tracks
- Subseries Level 3003 - Railroad yards
- ItemP11.14.14 - Pacific Coast Railroad yard at Renton, Washington in 1951.
- ItemP11.14.16 - Pacific Coast Railroad yard at Seattle, Washington in 1949.
- ItemP11.14.19 - Pacific Coast Railroad yard at Seattle, Washington in 1949.
- ItemP11.14.78 - Pacific Coast Railroad yard tracks at Seattle, Washington in 1951.