Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3011 - Railroad cars self-propelled
- ItemWWAGD-52-438 - Great Northern Diesel-Electric Car 2301 at Sioux Falls, South Dakota, 1942
- ItemWWAGD-52-440 - Great Northern Diesel-Electric Car 2317 at Watertown, South Dakota, 1992
- ItemWWAGD-52-442 - Great Northern Diesel-Electric Car, 1990
- ItemWWAGD-52-443 - Great Northern Diesel-Electric Car 2324 at Sioux City, Iowa, 1958
- ItemWWAGD-52-444 - Great Northern Diesel-Electric Car 2325 at Sioux Falls, South Dakota, 1958
- 4 more...