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
- 142 more...
- ItemCNBk1img143 - Great Northern Railway 2507 at Whitefish, Montana in 1968.
- ItemCNBk1img144 - Great Northern Railway 2506
- ItemCNBk1img145 - Great Northern Railway 2511 at Havre, Montana in 1968.
- ItemCNBk1img146 - Great Northern Railway 2512 at Havre, Montana in 1969.
- ItemCNBk1img147 - Great Northern Railway 2513 at Havre, Montana in 1969.
- ItemCNBk1img148 - Great Northern Railway 2514 at Minneapolis, Minnesota in 1969.
- ItemCNBk1img149 - Great Northern Railway 2522 at Wenatchee, Washington in 1970.
- ItemCNBk1img150 - Great Northern Railway 2522 at Wenatchee, Washington
- ItemCNBk1img151 - Great Northern Railway 2514 at Minneapolis Junction, Minnesota in 1969.
- 661 more...