Harry Truman actually said...
Now, Therefore, I, Harry S. Truman,President of the United States of America, acting under and by virtue of the authority vested in me by the aforesaid section 411 of title 2 of the Canal Zone Code, do hereby proclaim that the effective date of the said Proclamation No. 2775 of March 26, 1948, is further postponed to, and shall be, September 1, 1949.
03/11/1949