Railroad Archives Online
- CollectionD0036 - George Werkema Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- 250 more...
- Itemimg665 - Great Northern Boxcar 139021 at Albuquerque, New Mexico, 1981
- Itemimg666 - Great Northern Boxcar 139506 at Albuquerque, New Mexico, 1978
- Itemimg667 - Great Northern Boxcar 139506 at Albuquerque, New Mexico, 1978
- Itemimg668 - Great Northern Boxcar 200019 at Pasco, Washington, 1981
- Itemimg668 - Great Northern Boxcar 200019 at Pasco, Washington, 1981
- Itemimg669 - Great Northern Boxcar 200034 at Pasco, Washington, 1992
- Itemimg670 - Great Northern Boxcar 200034 at Pasco, Washington, 1992
- Itemimg671 - Great Northern Boxcar 200072 at Bellingham, Washington, 1966
- Itemimg672 - Great Northern Boxcar 200109 at Boone, Colorado, 1992
- 260 more...