Prime Minister of Australia prime minister, otherwise William McMahon63. Robert Menzies was the oldest person to ever be prime minister, leaving office at 71 years old. The longest-serving Prime Minister was Sir Robert Menzies, who served in office twice: from 26 April 1939 to 28 August 1941, and again from 19 December 1949 to 26 January 1966. In total Robert Menzies spent 18 years, 5 months and 12 days in office. He served under the United Australia Party and the Liberal Party respectively. The shortest-serving Prime Minister was Frank Forde, who was appointed to the position on 6 July 1945 after the death of
Prime Minister of Canada and his or her family. All of the aforementioned is supplied by the Queen-in-Council through budgets approved by parliament, as is the prime minister's total annual compensation of CAD$347,400. The Prime Minister's total compensation consists of the Member of the House of Commons Basic Sessional Indemnity of CAD$172,400, the Prime Minister Salary of CAD$172,400, and the Prime Minister Car Allowance of CAD$2000. Should a serving or former prime minister die, he or she is accorded a state funeral, wherein their casket lies in state in the Centre Block of Parliament Hill. Only Bowell and the Viscount Bennett were given private