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
- 119 more...
- ItemWWAGD-52-119 - Great Northern Diesel Locomotive 226, undated
- ItemWWAGD-52-120 - Great Northern Diesel Locomotive 227 at Seattle, Washington, 1967
- ItemWWAGD-52-121 - Great Northern Diesel Locomotive 257A at Minneapolis Junction, Minnesota, 1964
- ItemWWAGD-52-122 - Great Northern Diesel Locomotive 258A, undated
- ItemWWAGD-52-123 - Great Northern Diesel Locomotive 262A, undated
- ItemWWAGD-52-124 - Great Northern Diesel Locomotive 262A at La Grange, Illinois, 1967
- ItemWWAGD-52-125 - Great Northern Diesel Locomotive 266A, undated
- ItemWWAGD-52-126 - Great Northern Diesel Locomotive 267A at Superior, Wisconsin, 1955
- ItemWWAGD-52-127 - Great Northern Diesel Locomotive 267A, undated
- 289 more...