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
- 231 more...
- Itemimg646 - Great Northern Boxcar 319482 at Broomfield, Colorado, 1990
- Itemimg647 - Great Northern Boxcar 319489 at Albuquerque, New Mexico, 1978
- Itemimg648 - Great Northern Boxcar 38001 at Boulder, Colorado, 1965
- Itemimg649 - Great Northern Boxcar 38033 at Boulder, Colorado, 1965
- Itemimg650 - Great Northern Boxcar 38035 at Idaho Falls, Idaho, 1981
- 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
- 279 more...