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
- 80 more...
- Itemimg495 - Great Northern Boxcar 15116 at Coal Creek, Colorado, 1965
- Itemimg496 - Great Northern Boxcar 38772 at Arvada, Colorado, 1965
- Itemimg497 - Great Northern Boxcar 12224 at Albuquerque, New Mexico, 1980
- Itemimg498 - Great Northern Boxcar 12224 at Albuquerque, New Mexico, 1980
- Itemimg499 - Great Northern Boxcar 12224 at Albuquerque, New Mexico, 1980
- Itemimg500 - Great Northern Boxcar 12606 at Denver, Colorado, 1966
- Itemimg501 - Great Northern Boxcar 12778 at Albuquerque, New Mexico, 1980
- Itemimg502 - Great Northern Boxcar 12948 at Albuquerque, New Mexico, 1978
- Itemimg503 - Great Northern Boxcar 12980 at Albuquerque, New Mexico, 1978
- 430 more...