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
- 777 more...
- ItemCNBk3img109 - Great Northern Railway 503 at Columbia Falls, Montana
- ItemCNBk3img110 - Great Northern Railway 511 at St. Paul, Minnesota in 1967.
- ItemCNBk3img111 - Great Northern Railway 2515 at Minneapolis, Minnesota in 1968.
- ItemCNBk3img112 - Great Northern Railway passenger train, mixed blue and orange/green schemes, in unknown location led by pair of Class SDP locomotives
- ItemCNBk3img113 - Great Northern Railway 512 at Minneapolis, Minnesota in 1967.
- ItemCNBk3img114 - Great Northern Railway 333 at Fargo, North Dakota in 1970.
- ItemCNBk3img115 - Great Northern Railway 333 at Cut Bank, Montana in 1968.
- ItemCNBk3img116 - Great Northern Railway train at Wenatchee, Washington.
- ItemCNBk3img117 - Great Northern Railway 308-C at Monticello, Minnesota in 1967.
- 26 more...