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
- 148 more...
- ItemWWAGD-52-151 - Great Northern Diesel Locomotive 277B, undated
- ItemWWAGD-52-152 - Great Northern Diesel Locomotive 277B at Seattle, Washington, undated
- ItemWWAGD-52-153 - Great Northern Diesel Locomotive 278A, undated
- ItemWWAGD-52-155 - Great Northern Diesel Locomotive 278A, undated
- ItemWWAGD-52-157 - Great Northern Diesel Locomotive 279A, undated
- ItemWWAGD-52-158 - Great Northern Diesel Locomotive 279A at Wenatchee, Washington, 1967
- ItemWWAGD-52-159 - Great Northern Diesel Locomotive 279A at Wenatchee, Washington, 1967
- ItemWWAGD-52-160 - Great Northern Diesel Locomotive 307A, undated
- ItemWWAGD-52-161 - Great Northern Diesel Locomotive 307A at Minneapolis, Minnesota, 1969
- 252 more...