Great Northern Railway Historical Society Blueprint Collection JSBP2461, Helena, Montana, 1913. Great Northern Blueprint Number 7561-22, Passenger Station. Electric Lighting Plan and Details. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Depot.

Great Northern Railway Historical Society Blueprint Collection JSBP2462, Helena, Montana, 1919. Skylights and Ventilators. In Helena Depot. Authorization for Expenditure 9882. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2463, Helena, Montana, 1919. Skylights and Ventilators. In Helena Depot. Authorization for Expenditure 9882. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2471, Helena, Montana, undated. Passenger Station. Rear Elevation. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2474, Hendrum, Minnesota, 1917. Passenger and Freight Depot. Floor Plan. Authorization for Expenditure 4842. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2475, Hendrum, Minnesota, 1918. Depot. Floor Plan. Authorization for Expenditure 4842. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2478, Herman, Minnesota, 1918. Passenger and Freight Depot. Floor Plan. Authorization for Expenditure 4829. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2479, Herman, Minnesota, 1921. Passenger and Freight Depot. Extension and Remodeling. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2480, Herman, Minnesota, 1922. Great Northern Blueprint Number 7661.03, Passenger and Freight Depot. Heating Plan. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2481, Herman, Minnesota, 1922. Great Northern Blueprint Number 7661.02, Passenger and Freight Depot. Alterations and Addition Details. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Station Facilities.