Maurice Harold Macmillan, 1st Earl of Stockton was Prime Minister of the United Kingdom and Leader of the Conservative Party from 1957 to 1963. Nicknamed "Supermac", he was known for his pragmatism, wit, and unflappability. Born: February 10, 1894 Died: December 29, 1986 In office: January 10, 1957 – October 19, 1963 Wiki link