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
- ItemWWASPSL1-046 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive Number 157, Portland, Oregon, undated
- ItemWWASPSL1-048 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive Number 602, Portland, Oregon, 1924
- ItemWWASPSL1-049 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive Number 160, Portland, Oregon, 1932
- ItemWWASPSL1-050 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive Number 107, Portland, Oregon, undated
- ItemWWASPSL1-070 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive 364, Portland, Oregon, undated
- 945 more...