Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series010 - Other Railroads
- Subseries Level 1009 - Engineering Records
- Subseries Level 2007 - Part fabrication drawing
- ItemJSBP6412 - Great Northern Railway Historical Society Blueprint Collection JSBP6412, System Wide, 1912.
- ItemJSBP6515 - Great Northern Railway Historical Society Blueprint Collection JSBP6515, System Wide, 1915.
- ItemJSBP6517 - Great Northern Railway Historical Society Blueprint Collection JSBP6517, System Wide, 1915.
- ItemJSBP6558 - Great Northern Railway Historical Society Blueprint Collection JSBP6558, System Wide, 1916.
- ItemJSBP6680 - Great Northern Railway Historical Society Blueprint Collection JSBP6680, System Wide, 1920.
- 35 more...