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
- 372 more...
- Itemimg801 - Great Northern Covered Hopper Car 171555 at Amarillo, Texas, 1979
- Itemimg802 - Great Northern Covered Hopper Car 171587 at Pasco, Washington, 1983
- Itemimg803 - Great Northern Covered Hopper Car 171590 at Kennewick, Washington, 1986
- Itemimg804 - Great Northern Covered Hopper Car 171600 at Pasco, Washington, 1984
- Itemimg805 - Great Northern Covered Hopper Car 171613 at Denver, Colorado, 1967
- Itemimg806 - Great Northern Covered Hopper Car 171636 at McCook, Nebraska, 1990
- Itemimg807 - Great Northern Covered Hopper Car 171636 at McCook, Nebraska, 1990
- Itemimg808 - Great Northern Covered Hopper Car 171636 at McCook, Nebraska, 1990
- Itemimg809 - Great Northern Covered Hopper Car 171638 at Pasco, Washington, 1983
- 138 more...