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
- 488 more...
- Itemimg917 - Great Northern Woodchip Car 174228 at Albuquerque, New Mexico, 1995
- Itemimg918 - Great Northern Woodchip Car 174237 at Pasco, Washington, 1983
- Itemimg919 - Great Northern Woodchip Car 174254 at Seattle, Washington, 1977
- Itemimg920 - Great Northern Woodchip Car 174337 at Pasco, Washington, 1990
- Itemimg921 - Great Northern Woodchip Car 174338 at Belen, New Mexico, 1983
- Itemimg922 - Great Northern Woodchip Car 174348 at Wenatchee, Washington, 1992
- Itemimg923 - Great Northern Woodchip Car 174410 at Wenatchee, Washington, 1992
- Itemimg924 - Great Northern Flatcar 60108 at Boulder, Colorado, 1965
- Itemimg925 - Great Northern Flatcar 60535 at Bellingham, Washington, 1977
- 22 more...