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
- 236 more...
- Itemimg651 - Great Northern Boxcar 38040 at Denver, Colorado, 1982
- Itemimg652 - Great Northern Boxcar 38146 at Bellingham, Washington, 1982
- Itemimg653 - Great Northern Boxcar 38192 at Albuquerque, New Mexico, 1978
- Itemimg654 - Great Northern Boxcar 38233 at Denver, Colorado, 1984
- Itemimg655 - Great Northern Boxcar 138423 at Albuquerque, New Mexico, 1978
- Itemimg656 - Great Northern Boxcar 138439 at Albuquerque, New Mexico, 1984
- Itemimg657 - Great Northern Boxcar 138462 at Denver, Colorado, 1967
- Itemimg658 - Great Northern Boxcar 138510 at Denver, Colorado, 1990
- Itemimg659 - Great Northern Boxcar 138572 at Ferndale, Washington, 1992
- 274 more...