Great Northern Railway Historical Society Blueprint Collection JSBP0756, Calumet, Minnesota, undated. Great Northern Blueprint Number 3110-13-1, Crossing Frogs - Range Number 64. Site Plan, Plan and Detail. Interstate Commerce Commission Account Number 9, Rails. Other ICC account descriptions: ICC Account Number 9, Crossing Frog.

Great Northern Railway Historical Society Blueprint Collection JSBP0755, Calumet, Minnesota, 1949. Great Northern Blueprint Number 7365-1, 12' X 24' Signal Maintainers House. Floor Plan, Elevations and Sections. Authorization for Expenditure 78195. Interstate Commerce Commission Account Number 17, Roadway Buildings. Other ICC account descriptions: ICC Account Number 17, Signal Maintainer House.

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1977. Section Signal Bldg . Interstate Commerce Commission Account Number 17, Roadway buildings. Series BN.

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1925. Bunk House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series .

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1909. Section House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series .

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1909. Tool House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series .

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1909. Tool House . Interstate Commerce Commission Account Number 17, Roadway buildings. Series .

Great Northern Railway Authorization for Expenditure (AFE), Calumet, Minnesota, 1909. Passenger and Freight Depot, One Story, with Platform (Cinder and Frame). Interstate Commerce Commission Account Number 16, Station and Office Buildings. Series .