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
- 181 more...
- 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
- Itemimg602 - Great Northern Boxcar 138174 at Albuquerque, New Mexico, 1979
- Itemimg603 - Great Northern Boxcar 138184 at Boulder, Colorado, 1973
- Itemimg604 - Great Northern Boxcar 138186 at Albuquerque, New Mexico, 1978
- 329 more...