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
- 278 more...
- ItemCNBk1img330 - Great Northern Railway 620
- ItemCNBk1img331 - Great Northern Railway 620 at Spokane, Washington in 1968.
- ItemCNBk1img332 - Great Northern Railway 621 at Whitefish, Montana in 1967.
- ItemCNBk1img333 - Great Northern Railway 622 at Wenatchee, Washington in 1969.
- ItemCNBk1img334 - Great Northern Railway 622 at Whitefish, Montana in 1969.
- ItemCNBk1img335 - Great Northern Railway 623 at Bellingham, Washington in 1969.
- ItemCNBk1img336 - Great Northern Railway 624 at Seattle, Washington in 1970.
- ItemCNBk1img337 - Great Northern Railway 625 at Everett, Washington in 1970.
- ItemCNBk1img338 - Great Northern Railway 626 at Burlington, Washington in 1969.
- 525 more...