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
- 79 more...
- ItemWWAGD-52-067 - Great Northern Diesel Locomotive 180 at Spokane, Washington, 1967
- ItemWWAGD-52-068 - Great Northern Diesel Locomotive 181, undated
- ItemWWAGD-52-069 - Great Northern Diesel Locomotive 182, undated
- ItemWWAGD-52-070 - Great Northern Diesel Locomotive 186, undated
- ItemWWAGD-52-071 - Great Northern Diesel Locomotive 187, undated
- ItemWWAGD-52-073 - Great Northern Diesel Locomotive 187, 1970
- ItemWWAGD-52-075 - Great Northern Diesel Locomotive 189, undated
- ItemWWAGD-52-076 - Great Northern Diesel Locomotive 190, undated
- ItemWWAGD-52-077 - Great Northern Diesel Locomotive 195, undated
- 329 more...