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
- 69 more...
- Itemimg484 - Great Northern Boxcar 3345 at Knoxville, Tennessee, 1979
- Itemimg485 - Great Northern Boxcar 3351 at Albuquerque, New Mexico, 1979
- Itemimg486 - Great Northern Boxcar 3377 at Albuquerque, New Mexico, 1978
- Itemimg487 - Great Northern Boxcar 3658 at Denver, Colorado, 1980
- Itemimg488 - Great Northern Boxcar 3779 at Boulder, Colorado, 1963
- Itemimg489 - Great Northern Boxcar 3840 at Albuquerque, New Mexico, 1978
- Itemimg490 - Great Northern Boxcar 3840 at Albuquerque, New Mexico, 1978
- Itemimg491 - Great Northern Boxcar 3879 at Albuquerque, New Mexico, 1978
- Itemimg492 - Great Northern Boxcar 3879 at Albuquerque, New Mexico, 1978
- 441 more...