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
- 61 more...
- Itemimg476 - Great Northern Boxcar 3105 at Denver, Colorado, 1978
- Itemimg477 - Great Northern Boxcar 3117 at Albuquerque, New Mexico, 1979
- Itemimg478 - Great Northern Boxcar 3182 at Albuquerque, New Mexico, 1982
- Itemimg479 - Great Northern Boxcar 3185 at Albuquerque, New Mexico, 1979
- Itemimg480 - Great Northern Boxcar at Bellingham, Washington, 1977
- Itemimg481 - Great Northern Boxcar 3192 at Albuquerque, New Mexico, 1978
- Itemimg482 - Great Northern Boxcar 3288 at Bellingham, Washington, 1977
- Itemimg483 - Great Northern Boxcar 3345 at Knoxville, Tennessee, 1979
- Itemimg484 - Great Northern Boxcar 3345 at Knoxville, Tennessee, 1979
- 449 more...