Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3010 - Miscellaneous Structure Photos
- ItemJSBP0415 - Great Northern Railway Historical Society Blueprint Collection JSBP0415, Barnesville, Minnesota, undated.
- ItemJSBP4958 - Great Northern Railway Historical Society Blueprint Collection JSBP4958, Somers, Montana, undated.
- ItemJSBP9089 - Great Northern Railway Historical Society Blueprint Collection JSBP9089, Williston, North Dakota, 1909.