10/12/1948
https://www.presidency.ucsb.edu...
"For these reasons, I am unable to approve this joint resolution."
"Equitable use of the practice of recognizing the historic importance of events by the issuance of special stamps requires that this recognition be accorded at this time to other elements in our nation..."
"I hereby designate Sunday, May 16, 1948, as I Am An American Day"
"I call upon Federal, State, and local officials, as well as patriotic, civic, and educational organizations, to conduct exercises on or about May 16"