Railroad Archives Online
- FondsE0298 - Cordell Newby Photograph Collection
- Cyfres003 - Great Northern Railway Company (U.S.)
- Is-gyfres014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 006 - Cabooses (Railroads)
- 66 mwy...
- EitemCNBk3img155 - Great Northern Railway Caboose X-49 at Sioux Falls, South Dakota.
- EitemCNBk3img157 - Great Northern Railway Caboose X-53.
- EitemCNBk3img161 - Great Northern Railway Caboose X-60.
- EitemCNBk3img162 - Great Northern Railway Caboose X-64 at Wenatchee Appleyard, Washington.
- EitemCNBk3img163 - Great Northern Railway Caboose X-67.
- EitemCNBk3img166 - Great Northern Railway Caboose X-771.
- EitemCNBk3img167 - Great Northern Railway Caboose X-81.
- EitemCNBk3img168 - Great Northern Railway Caboose X-80.
- EitemCNBk3img169 - Great Northern Railway Caboose X-78 in red color scheme at Wenatchee Appleyard, Washington.
- 71 mwy...