05/17/1937
https://www.presidency.ucsb.edu...
"In time of war, the President is empowered, through the Secretary of War, to take possession and assume control of any system or systems of transportation, or any part thereof"
"the Director shall observe the terms and conditions of the directive order of the National War Labor Board"
"the exercise, as hereinafter specified, of the powers vested in me is necessary to insure, in the interest of the war effort, the operation of the said systems"
"Such officer, warrant officer, nurse, or enlisted man may comply with the requirements herein prescribed by performing four or more glider flights without regard to the duration thereof during a perio..."