Railroad Archives Online
- FondsD0197 - Maple Valley Historical Society Collection
- Cyfres004 - Pacific Coast Railroad Company
- Is-gyfres014 - Photographs
- 003 - Railroads--Buildings and Structures
- 010 - Miscellaneous Structures
- EitemP11.14.77 - Pacific Coast Railroad dock at Seattle, Washington in 1951.
- EitemP1985.50.01-001 - Milwaukee Hotel and Milwaukee Bar at Maple Valley, Washington in 1912.
- EitemP1985.51.01-002 - Maple Valley, Washington in 1913.
- EitemP1985.116.01-013 - Road bridge at Maple Valley, Washington in 1909.