Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- ItemJMF14-05626.0 - Great Northern Railway telegraph station at Wellington, Washington, circa 1910.
- ItemJMF14-05627.0 - Great Northern Railway telegraph station at Wellington, Washington, circa 1910.