(Butch) (1914–43), U.S. aviator and war hero, born in St. Louis, Mo.; graduated from U.S. Naval Academy 1937; aviation training at Pensacola Naval Air Station; assigned to aircraft carrier Lexington 1942; when the ship was attacked by Japanese bombers near Bougainville Island in the Solomons on Feb. 20, 1942, O'Hare found himself facing nine bombers alone; shot down five and damaged three, making him the first U.S. air ace of the war; awarded Congressional Medal of Honor; listed as missing in action Nov. 20, 1943, and presumed shot down; O'Hare International Airport in Chicago named in his honor.