Executive Order 5591—Authorizing the Appointment of Mrs. Grace McMahan Tyndall
Mrs. Grace McMahan Tyndall may be appointed to an appropriate position under the War Department, without regard to the requirements of the civil-service rules. Mrs. Tyndall is the widow of Lieut. Frank B. Tyndall, who was killed in line of duty while piloting an Army airplane during a night flight on July 15, 1930.
This order is issued upon the recommendation of the Secretary of War.
The White House,
April 1, 1931.
Herbert Hoover, Executive Order 5591—Authorizing the Appointment of Mrs. Grace McMahan Tyndall Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/361211