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
- 479 more...
- Itemimg908 - Great Northern Woodchip Car 174001 at Pasco, Washington, 1983
- Itemimg909 - Great Northern Woodchip Car 174091 at Seattle, Washington, 1977
- Itemimg910 - Great Northern Woodchip Car 174134 at Wallula, Washington, 1986
- Itemimg911 - Great Northern Woodchip Car 174172 at Pasco, Washington, 1983
- Itemimg912 - Great Northern Woodchip Car 174179 at Pasco, Washington, 1981
- Itemimg913 - Great Northern Woodchip Car 174187 at Bellingham, Washington, 1982
- Itemimg914 - Great Northern Woodchip Car 174187 at Bellingham, Washington, 1982
- Itemimg915 - Great Northern Woodchip Car 174216 at Pasco, Washington, 1983
- Itemimg916 - Great Northern Woodchip Car 174223 at Albuquerque, New Mexico, 1995
- 31 more...