Great Northern Railway Historical Society Blueprint Collection JSBP3279, Milaca, Minnesota, 1940. Great Northern Blueprint Number 215-1314-12, Bridge Number 39. General Plan. Authorization for Expenditure 60165. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP3280, Milaca, Minnesota, undated. Bridge Number 39. 3 Photographs Show Old Bridge. Authorization for Expenditure 60165. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.

Great Northern Railway Historical Society Blueprint Collection JSBP3281, Milaca, Minnesota, undated. Great Northern Blueprint Number 113-1245-Sheet 9, Bridge Number 39. Stress Diagram for 150' Through Truss. Authorization for Expenditure 60165. Interstate Commerce Commission Account Number 6, Bridges, Trestles, and Culverts. Other ICC account descriptions: ICC Account Number 6, Bridge.