Railroad Archives Online
- CollectionE0298 - Cordell Newby Photograph Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2005 - Landscape photography
- ItemCNBk2img236 - John F Stevens statue at Summit, Montana in 1969.
- ItemCNBk2img249 - Great Northern Railway Two Medicine Bridge, East Glacier, Montana in 1969.