William R. Rathvon is the only known eyewitness of the Gettysburg Address to have left an audio recording of what he remembered. 1 year before he died in '39, Rathvon's remarks were rec. at Feb 12, '38. It incl. his reading the address itself. The title of the rec. was "I Heard Lincoln That Day - William R. Rathvon, TR Productions". NPR found a copy during a "Quest for Sound" project in '99. NPR allows people to hear the rec. around Lincoln's birthday.