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 3002 - Diesel Locomotives
- 339 more...
- ItemWWAGD-52-388 - Great Northern Diesel Locomotive 607, undated
- ItemWWAGD-52-389 - Great Northern Diesel Locomotive 607, undated
- ItemWWAGD-52-390 - Great Northern Diesel Locomotive 608, 1967
- ItemWWAGD-52-391 - Great Northern Diesel Locomotive 616, 1970
- ItemWWAGD-52-392 - Great Northern Diesel Locomotive 625, undated
- ItemWWAGD-52-393 - Great Northern Diesel Locomotive 625, 1970
- ItemWWAGD-52-394 - Great Northern Diesel Locomotive 626, undated
- ItemWWAGD-52-396 - Great Northern Diesel Locomotive 636, undated
- ItemWWAGD-52-397 - Great Northern Diesel Locomotive 644, undated
- 69 more...