Railroad Archives Online
- CollectionE0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1006 - Business Correspondence
- ItemJSBP6201 - Great Northern Railway Historical Society Blueprint Collection JSBP6201, System Wide, 1903.
- ItemJSBP8259 - Great Northern Railway Historical Society Blueprint Collection JSBP8259, System Wide, 1959.
- ItemJSBP9514 - Great Northern Railway Historical Society Blueprint Collection JSBP9514, 1901.
- ItemJSBP9539 - Great Northern Railway Historical Society Blueprint Collection JSBP9539, Washington, 1904.
- ItemJSBP9618 - Great Northern Railway Historical Society Blueprint Collection JSBP9618, 1911.
- 2 more...