Frank Lee Morris (born September 1, 1926 - June 11, 1962 or later) was an American criminal who took part in the June 1962 Alcatraz escape with fellow prisoners and accomplices John and Clarence Anglin. The fate of Morris remains a mystery that has become a part of American folklore; he was never seen or heard from again, and is presumed deceased. The three men who took part in the escape attempt are officially listed by the Federal Bureau of Investigation as missing and presumed drowned. The United States Marshals Service continues, however, to investigate and considers their missing status to be an open case.