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
- 104 more...
- ItemWWAGD-52-099 - Great Northern Diesel Locomotive 225 at Portland, Oregon, 1959
- ItemWWAGD-52-100 - Great Northern Diesel Locomotive 225 at Vancouver, British Columbia, undated
- ItemWWAGD-52-103 - Great Northern Diesel Locomotive 226, undated
- ItemWWAGD-52-104 - Great Northern Diesel Locomotive 226, undated
- ItemWWAGD-52-106 - Great Northern Diesel Locomotive 226 at Seattle, Washington, undated
- ItemWWAGD-52-107 - Great Northern Diesel Locomotive 227 at Seattle, Washington, undated
- ItemWWAGD-52-109 - Great Northern Diesel Locomotive 229 at Seattle, Washington, undated
- ItemWWAGD-52-110 - Great Northern Diesel Locomotive 229 at Schenectady, New York, undated
- ItemWWAGD-52-111 - Great Northern Diesel Locomotive 229 at Schenectady, New York, undated
- 304 more...