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 3001 - Bridges
- 58 more...
- ItemWWASPSL3-048 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-049 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, July 13, 1912
- ItemWWASPSL3-050 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-051 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, April 1912
- ItemWWASPSL3-052 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, undated
- ItemWWASPSL3-053 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, September 3, 1912
- ItemWWASPSL3-054 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, May 18, 1909
- ItemWWASPSL3-056 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, January 15, 1914
- ItemWWASPSL3-057 - Spokane, Portland, and Seattle (SP&S) Columbia River Bridge at Vancouver, Washington, August 28, 1909
- 41 more...