Great Northern Railway Historical Society Blueprint Collection JSBP2588, Hillyard, Washington, 1935. Great Northern Blueprint Number # 24, Turntable. Location of Guard Railing. Authorization for Expenditure 84600. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2587, Hillyard, Washington, 1932. New Roof On Engine House. Stalls 29 to 34. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2584, Hillyard, Washington, 1930. Great Northern Blueprint Number 8136-46, Removing 7 Stalls and Building 9 Stall Addition. Heating, Plumbing and Piping. 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 JSBP2583, Hillyard, Washington, 1930. Great Northern Blueprint Number 8136-47, Piping Changes Stall 20 and 21. Floor Plan and Details. Authorization for Expenditure 41608. 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 JSBP2582, Hillyard, Washington, 1930. Great Northern Blueprint Number 8136.33, Engine House. Remove Stall # 1 to # 7 and Build Addition to Stall # 9. Authorization for Expenditure 40864. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Shop Facilities.

Great Northern Railway Historical Society Blueprint Collection JSBP2581, Hillyard, Washington, 1929. Great Northern Blueprint Number 8136-33, Removing 7 Stalls and Building 9 Stalls. General Plan. 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 JSBP2580, Hillyard, Washington, 1929. Great Northern Blueprint Number 8136-45, Remodeling Round House. Heating, Plumbing and Piping. Authorization for Expenditure 49864. 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 JSBP2579, Hillyard, Washington, 1929. Great Northern Blueprint Number 8136-34, Remodeling Round House. Plan, Section and Engine Pit. Authorization for Expenditure 49864. 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 JSBP2578, Hillyard, Washington, 1929. Great Northern Blueprint Number 8136-38, Remodeling Round House. Lantern Sash Details. Authorization for Expenditure 49864. 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 JSBP2577, Hillyard, Washington, 1929. Great Northern Blueprint Number 8136-37, Remodel Ing Round House. Roof Framing Plan. Authorization for Expenditure 49864. Interstate Commerce Commission Account Number 20, Shops and Engine Houses. Other ICC account descriptions: ICC Account Number 20, Engine House.