Railroad Archives Online
- E0045A - Great Northern Railway- Blueprint-Authorization for Expenditure Collection
- Ro`yxat007 - Spokane, Portland, and Seattle Railway
- Ro`yxat-osti009 - Engineering Records
- 006 - Painting and Lettering
- JSBP8239 - Great Northern Railway Historical Society Blueprint Collection JSBP8239, System Wide, 1956.