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
- 390 more...
- Itemimg819 - Great Northern Covered Hopper Car 171864 at Pasco, Washington, 1981
- Itemimg820 - Great Northern Covered Hopper Car 171889 at Pasco, Washington, 1983
- Itemimg821 - Great Northern Covered Hopper Car 171509 at Pasco, Washington, 1981
- Itemimg822 - Great Northern Covered Hopper Car 171948 at Pasco, Washington, 1986
- Itemimg823 - Great Northern Covered Hopper Car 171963 at Pasco, Washington, 1990
- Itemimg824 - Great Northern Covered Hopper Car 171993 at Pasco, Washington, 1984
- Itemimg825 - Great Northern Covered Hopper Car 171998 at Albuquerque, New Mexico, 1978
- Itemimg826 - Great Northern Covered Hopper Car 171998 at Albuquerque, New Mexico, 1978
- Itemimg827 - Great Northern Covered Hopper Car 171998 at Albuquerque, New Mexico, 1978
- 120 more...