Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3012 - Street railroads
- 1547 more...
- ItemWWASMR-14-040 - Seattle Municipal Railway Track, Seattle, Washington, 1922
- ItemWWASMR-14-041 - Seattle Municipal Railway Track, Seattle, Washington, 1924
- ItemWWASMR-14-042 - Seattle Municipal Railway Track, Seattle, Washington, 1921
- ItemWWASMR-14-043 - Seattle Municipal Railway Car 811, Seattle, Washington, 1939
- ItemWWASMR-15-001 - Seattle Municipal Railway Car 392, Seattle, Washington, circa 1940
- ItemWWASMR-15-002 - Seattle Municipal Railway Cars, Seattle, Washington, 1931
- ItemWWASMR-15-003 - Seattle Municipal Railway Car, Seattle, Washington, 1938
- ItemWWASMR-15-004 - Seattle Municipal Railway Car 169, Seattle, Washington, undated
- ItemWWASMR-15-005 - Seattle Municipal Railway Car 394, Seattle, Washington, undated
- 571 more...