Great Northern Railway Historical Society Blueprint Collection JSBP9236, Willmar, Minnesota, 1926. Great Northern Blueprint Number 8317-8, Storehouse Extension. Plans, Elevation, Sections and Details. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Store House.

Great Northern Railway Historical Society Blueprint Collection JSBP9235, Willmar, Minnesota, 1925. Sanding Facilities On Tower. Elevation. Interstate Commerce Commission Account Number 19, Fuel Stations. Other ICC account descriptions: ICC Account Number 19, Sanding Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9234, Willmar, Minnesota, 1925. 20' X 30' Storage Tank. Foundation Plan. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9233, Willmar, Minnesota, 1925. Water Treating Plant. Details of Framing for Mixing Machinery and Wheel. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9231, Willmar, Minnesota, 1923. Boiler Washing System. Plan, Section and Details. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine House.

Great Northern Railway Historical Society Blueprint Collection JSBP9230, Willmar, Minnesota, 1921. Great Northern Blueprint Number 8450-4, Koyl System - Water Treating Plant. Elevations. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9229, Willmar, Minnesota, 1921. Great Northern Blueprint Number 8450-3, Koyl System - Water Treating Plant. Sections and Elevation. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9228, Willmar, Minnesota, 1921. Great Northern Blueprint Number 8450-2, Koyl System - Water Treating Plant. Second Floor Plan and Details. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9227, Willmar, Minnesota, 1921. Great Northern Blueprint Number 8450-1, Koyl System - Water Treating Plant. Foundation and 1st Floor Plans. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP9226, Willmar, Minnesota, 1921. Great Northern Blueprint Number 8450-8, Koyl System - Water Treating Plant. Chemical Box Details. Interstate Commerce Commission Account Number 18, Water Stations. Other ICC account descriptions: ICC Account Number 18, Water Facilities.