Railroad Archives Online
- CollectionE0298 - Cordell Newby Photograph Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 247 more...
- ItemCNBk1img299 - Great Northern Railway 721
- ItemCNBk1img300 - Great Northern Railway 721 at Spokane, Washington in 1968.
- ItemCNBk1img301 - Great Northern Railway 722 at Great Falls, Montana in 1968.
- ItemCNBk1img302 - Great Northern Railway 723 at Seattle, Washington
- ItemCNBk1img303 - Great Northern Railway 724
- ItemCNBk1img304 - Great Northern Railway 726 at Seattle, Washington in 1968.
- ItemCNBk1img305 - Great Northern Railway 726 at Everett, Washington in 1970.
- ItemCNBk1img306 - Great Northern Railway 727 at Wenatchee, Washington in 1969.
- ItemCNBk1img307 - Great Northern Railway 728 at Summit, Montana in 1969.
- 556 more...