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
- 178 more...
- Itemimg593 - Great Northern Boxcar 138044 at Denver, Colorado, 1985
- Itemimg594 - Great Northern Boxcar 138117 at Albuquerque, New Mexico, 1980
- Itemimg595 - Great Northern Boxcar 138117 at Albuquerque, New Mexico, 1980
- Itemimg596 - Great Northern Boxcar 138181 at Wishram, Washington, 1988
- Itemimg597 - Great Northern Boxcar 138149 at Albuquerque, New Mexico, 1982
- Itemimg598 - Great Northern Boxcar 138154 at Albuquerque, New Mexico, 1978
- Itemimg599 - Great Northern Boxcar 138157 at Denver, Colorado, 1990
- Itemimg600 - Great Northern Boxcar 138160 at Pasco, Washington, 1990
- Itemimg601 - Great Northern Boxcar 138167 at Albuquerque, New Mexico, 1980
- 332 more...