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
- 114 more...
- ItemWWAGD-52-113 - Great Northern Diesel Locomotive 229 at Schenectady, New York, undated
- ItemWWAGD-52-114 - Great Northern Diesel Locomotive 229 at Schenectady, New York, undated
- ItemWWAGD-52-116 - Great Northern Diesel Locomotive 230, undated
- ItemWWAGD-52-117 - Great Northern Diesel Locomotive 247B, undated
- ItemWWAGD-52-118 - Great Northern Diesel Locomotive 263A at Portland, Oregon, 1965
- 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
- 294 more...