02/06/1952
https://www.presidency.ucsb.edu...
"The provisions of Part I of Executive Order No. 10210 of February 2, 1951, entitled 'Authorizing the Department of Defense and the Department of Commerce to Exercise the Functions and Powers Set Forth..."
"By virtue of the authority vested in me by the First War Powers Act, 1941, as amended by the act of January 12, 1951, entitled 'An Act to amend and extend title II of the first War Powers Act, 1941' (..."
"And provided further, That nothing contained herein shall prejudice any other authority which the General Services Administration or the Administrator of General Services may have with respect to proc..."
"Now, Therefore, I, Harry S. Truman, President of the United States of America, do hereby proclaim Saturday, April 14, 1951, as Pan American Day"