Great Northern Railway Historical Society Blueprint Collection JSBP9232, Willmar, Minnesota, 1923. Great Northern Blueprint Number R-72, Willmar Number 2. Map.

Great Northern Railway Historical Society Blueprint Collection JSBP9247, Willmar, Minnesota, 1928. Proposed Addition to Yard Tracks. Map. Interstate Commerce Commission Account Number 12, Track Laying and Surfacing. Other ICC account descriptions: ICC Account Number 12, Yard Track.

Great Northern Railway Historical Society Blueprint Collection JSBP9346, Willmar, Minnesota, undated. Map. Authorization for Expenditure 38705. Interstate Commerce Commission Account Number 16, Station and Office Buildings. Other ICC account descriptions: ICC Account Number 16, Yard Building.

Great Northern Railway Historical Society Blueprint Collection JSBP9347, Willmar, Minnesota, undated. Map of Engine Facilities. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine Facilities.

Great Northern Blueprint Number 1236-9-2, map of Willmar, 1883. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1236-9-1, map of Willmar, 1889. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1236-9-3, map of Willmar, 1889. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1021-2-1, map of Location of Drain Tile 1 Mile East of Willmar, 1921. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1254-2-1, map of Willmar Number 2, 1921. Other subject categories: Right of Way and Track Map

Great Northern Blueprint Number 1254-2-2, map of Willmar Number 1, 1927. Other subject categories: Right of Way and Track Map