1942: Armistice Day ceremony commemorating America's dead in previous wars, led by President Franklin D. Roosevelt and Gen. John J. Pershing, commander the American Expeditionary Forces in World War I. Hat-tip Internet archive. This one via the Washington Examiner.
From 1944, William Bendix in a radio adaptation of the film "Guadalcanal Diary"
From 1940, Cavalcade of America "Valley Forge"
Left click to listen, right downloads!