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
- 13 more...
- Itemimg428 - Great Northern Boxcar 6028 at Albuquerque, New Mexico, 1980
- Itemimg429 - Great Northern Boxcar 6119 at Albuquerque, New Mexico, 1979
- Itemimg430 - Great Northern Boxcar 6127 at Albuquerque, New Mexico, 1978
- Itemimg431 - Great Northern Boxcar 6191 at Albuquerque, New Mexico, 1980
- Itemimg432 - Great Northern Boxcar 6386 at Belen, New Mexico, 1980
- Itemimg433 - Great Northern Boxcar 6427 at Albuquerque, New Mexico, 1980
- Itemimg434 - Great Northern Boxcar 6433 at Albuquerque, New Mexico, 1980
- Itemimg435 - Great Northern Boxcar 11597 at Albuquerque, New Mexico, 1980
- Itemimg436 - Great Northern Boxcar 18670 at Denver, Colorado, 1967
- 497 more...