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
- 206 more...
- Itemimg621 - Great Northern Boxcar 319140 at Idaho Falls, Idaho, 1991
- Itemimg622 - Great Northern Boxcar 319172 at Denver, Colorado, 1990
- Itemimg623 - Great Northern Boxcar 319175 at Albuquerque, New Mexico, 1982
- Itemimg624 - Great Northern Boxcar 319175 at Belen, New Mexico, 1991
- Itemimg625 - Great Northern Boxcar 319200 at Denver, Colorado, 1982
- Itemimg626 - Great Northern Boxcar 319208 at Denver, Colorado, 1990
- Itemimg627 - Great Northern Boxcar 319173 at Pasco, Washington, 1992
- Itemimg628 - Great Northern Boxcar 319240 at Denver, Colorado, 1989
- Itemimg629 - Great Northern Boxcar 319244 at Albuquerque, New Mexico, 1978
- 304 more...