Great Northern Railway Historical Society Blueprint Collection JSBP8371, System Wide, undated. Great Northern Blueprint Number 6220.01, Circular Engine Houses. List of Plans for Various Roundhouses. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8370, System Wide, undated. Great Northern Blueprint Number 8004.02, Round House. General Floor Plan. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8369, System Wide, undated. Inclined Cinder Plant. "Red Devil" - General Arrangement. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8368, System Wide, undated. Turntable Donkey. Diagram and Gear Arrangement. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8367, System Wide, undated. Great Northern Blueprint Number 62, Standard Ventilator. For Buildings, Engine House, and River Steamers. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8366, System Wide, undated. Great Northern Blueprint Number 1331.27, Hot Water Reservoir. Plan and Sections. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8365, System Wide, undated. Hot Water Storage Tank. 50,000 and 100,000 Gallon. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8364, System Wide, undated. Great Northern Blueprint Number 8377.01, Frame Roundhouse. (92') - Plans, Sections, and Elevations. Authorization for Expenditure 11652. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8363, System Wide, undated. Standard Venilator. For Roundhouses, Shops, River Steam Boats. Authorization for Expenditure 9627. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP8362, System Wide, undated. Standard Ventilator. Roundhouses, Shops, Steam Boats. Authorization for Expenditure 9627. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.