Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series005 - Pacific Coast Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3006 - Cabooses (Railroads)
- 12 more...
- ItemWWAPC0286 - Pacific Coast Railroad wood caboose number 53 at Seattle, Washington, circa 1950.
- ItemWWAPC0288 - Pacific Coast Railroad wood caboose number 53 near Maple Valley, Washington, circa 1943.
- ItemWWAPC0290 - Pacific Coast Railroad caboose number 54 at Taylor, Washington, circa 1940.
- ItemWWAPC0291 - Pacific Coast Railroad caboose number 53 at Seattle, Washington, circa 1950.
- ItemWWAPC0293 - Pacific Coast Railroad caboose number 54 at Seattle, Washington in 1940.
- ItemWWAPC0295 - Pacific Coast Railroad caboose number 55 at Seattle, Washington, circa 1950.
- ItemWWAPC0297 - Pacific Coast Railroad caboose number 56 at Black Diamond, Washington, circa 1950.
- ItemWWAPC0299 - Pacific Coast Railroad caboose number X1 at Renton, Washington in July 1968.
- ItemWWAPC0300 - Pacific Coast Railroad caboose number X1 at unknown, Washington, circa 1956.
- 4 more...