Railroad Archives Online
- FondE0298 - Cordell Newby Photograph Collection
- Sorozat003 - Great Northern Railway Company (U.S.)
- Alsorozat014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 006 - Cabooses (Railroads)
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- IratdarabCNBk3img263 - Great Northern Railway Caboose X-639.
- IratdarabCNBk3img268 - Great Northern Railway Caboose X320.
- IratdarabCNBk3img271 - Great Northern Railway Caboose X639.
- IratdarabCNBk3img272 - Great Northern Railway Caboose X628.
- IratdarabCNBk3img276 - Great Northern Railway Caboose X320.
- IratdarabCNBk3img264 - Great Northern Railway Caboose X180 at Seattle, Washington.