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
- 49 more...
- ItemWWAHP-052 - Seattle Municipal Railway Track, Seattle, Washington, 1925
- ItemWWAHP-053 - Seattle Municipal Railway Track, Seattle, Washington, 1928
- ItemWWAHP-054 - Seattle Municipal Railway Track, Seattle, Washington, undated
- ItemWWAHP-055 - Seattle Municipal Railway Track, Seattle, Washington, undated
- ItemWWAHP-056 - Seattle Municipal Railway Employees, Seattle, Washington, 1930
- ItemWWAHP-057 - Seattle Municipal Railway Track, Seattle, Washington, 1925
- ItemWWAHP-058 - Seattle Municipal Railway Track, Seattle, Washington, 1924
- ItemWWAHP-059 - Seattle Municipal Railway Track, Seattle, Washington, 1924
- ItemWWAHP-060 - Seattle Municipal Railway Car 357, Seattle, Washington, undated
- 2069 more...