Railroad Archives Online
- CollectionE0298 - Cordell Newby Photograph Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3004 - Railroad passenger cars
- 264 more...
- ItemCNBk4img164 - Great Northern Railway Passenger Car 1073 at St. Paul, Minnesota in 1973.
- ItemCNBk4img398 - Great Northern Railway Postal Car 476.
- ItemCNBk4img399 - Great Northern Railway Postal Car 484, at Seattle, Washington in 1968.
- ItemCNBk4img400 - Great Northern Railway Postal Car 493, at Minneapolis, Minnesota in 1973.
- CNBk4img401 - Great Northern Railway Postal Car 482 at Wenatchee, Washington in 1970.