Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2007 - Part fabrication drawing
- 14 more...
- ItemJSBP6589 - Great Northern Railway Historical Society Blueprint Collection JSBP6589, System Wide, 1917.
- ItemJSBP6638 - Great Northern Railway Historical Society Blueprint Collection JSBP6638, System Wide, 1918.
- ItemJSBP6639 - Great Northern Railway Historical Society Blueprint Collection JSBP6639, System Wide, 1918.
- ItemJSBP6665 - Great Northern Railway Historical Society Blueprint Collection JSBP6665, System Wide, 1919.
- ItemJSBP7532 - Great Northern Railway Historical Society Blueprint Collection JSBP7532, System Wide, 1937.
- ItemJSBP9771 - Great Northern Railway Historical Society Blueprint Collection JSBP9771, 1919.