July 20, 1959
As a mark of respect to the memory of Fleet Admiral William D. Leahy, it is hereby ordered, pursuant to the provisions of Section 4 of Proclamation 3044 of March 1, 1954, that until interment the flag of the United States shall be flown at half-staff on all buildings, grounds, and naval vessels of the Federal Government in the District of Columbia and throughout the United States and its Territories and possessions.
DWIGHT D. EISENHOWER
THE WHITE HOUSE,
July 20, 1959.
Dwight D. Eisenhower, Executive Order 10829—Fleet Admiral William D. Leahy Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/306817