Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 443 more...
- ItemWWASPSS-07-045 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Vancouver, Washington, April 30, 1944
- ItemWWASPSS-07-046 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Pasco, Washington, April 30, 1945
- ItemWWASPSS-07-047 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Astoria, Oregon, July 22, 1947
- ItemWWASPSS-07-048 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Portland, Oregon, July 8, 1947
- ItemWWASPSS-07-049 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, undated
- ItemWWASPSS-07-050 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Portland, Oregon, July 4, 1946
- ItemWWASPSS-07-051 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Portland, Oregon, August 20, 1948
- ItemWWASPSS-07-052 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, Scappoose, Oregon, undated
- ItemWWASPSS-07-053 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 603, St. Helens, Oregon, undated
- 498 more...