Railroad Archives Online
- FondsD0036 - George Werkema Collection
- Série003 - Great Northern Railway Company (U.S.)
- Sous-série014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 006 - Cabooses (Railroads)
- 14 en plus...
- Pièceimg217 - Great Northern Caboose X432 at Hillyard, Washington, 1965
- Pièceimg218 - Great Northern Caboose X443 at Rio Vista, California, 1991
- Pièceimg219 - Great Northern Caboose X461 at Havre, Montana, 1972
- Pièceimg220 - Great Northern Caboose X527 at Great Falls, Montana, 1974
- Pièceimg221 - Great Northern Caboose X599, 1969
- Pièceimg222 - Great Northern Caboose X679, 1960
- Pièceimg223 - Great Northern Caboose at Issaquah, Washington, 1992
- Pièceimg224 - Great Northern Caboose at Issaquah, Washington, 1992
- Pièceimg225 - Great Northern Caboose at Issaquah, Washington, 1992