Railroad Archives Online
- FondoD0063 - Walter W. Ainsworth Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Subserie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 011 - Railroad cars self-propelled
- Unidad documental simpleWWAGD-52-438 - Great Northern Diesel-Electric Car 2301 at Sioux Falls, South Dakota, 1942
- Unidad documental simpleWWAGD-52-440 - Great Northern Diesel-Electric Car 2317 at Watertown, South Dakota, 1992
- Unidad documental simpleWWAGD-52-442 - Great Northern Diesel-Electric Car, 1990
- Unidad documental simpleWWAGD-52-443 - Great Northern Diesel-Electric Car 2324 at Sioux City, Iowa, 1958
- Unidad documental simpleWWAGD-52-444 - Great Northern Diesel-Electric Car 2325 at Sioux Falls, South Dakota, 1958
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