Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3009 - Railroads - Servicing facilities
- ItemWWASPSL2-063 - Spokane, Portland, and Seattle (SP&S) Coal Dock, Cooks, Washington, undated
- ItemWWASPSL4-008 - Spokane, Portland, and Seattle (SP&S) Coal Dock and Water Tank at Cooks, Washington, 1926(?)
- ItemWWASPSL4-010 - Spokane, Portland, and Seattle (SP&S) Coal Dock and Water Tank at Cooks, Washington, 1926(?)
- ItemWWASPSL5-027 - Spokane, Portland, and Seattle (SP&S) Water Tank at Fallbridge, Washington, undated
- ItemWWASPSL6-060 - Spokane, Portland, and Seattle (SP&S) Coal Dock at Cliffs, Washington, undated
- 2 more...