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 3011 - Railroad cars self-propelled
- ItemWWASPSD2-075 - Spokane, Portland and Seattle (SP&S) Gas Car Number 1101, undated
- ItemWWASPSD2-076 - Spokane, Portland and Seattle (SP&S) Gas Car Number 1101, undated
- ItemWWASPSD2-077 - Spokane, Portland and Seattle (SP&S) Gas Car Number 1101, Rainier, Oregon, undated
- ItemWWASPSD2-078 - Spokane, Portland and Seattle (SP&S) Gas Car Number 1101, Rainier, Oregon, undated
- ItemWWASPSD2-079 - Spokane, Portland and Seattle (SP&S) Gas Car Number 1101, undated
- 10 more...