William McMahon

Sir William McMahon
Image of William McMahon as Treasurer of Australia in 1966
Official portrait, 1973
20th Prime Minister of Australia
In office
10 March 1971 – 5 December 1972
MonarchElizabeth II
Governor‑GeneralSir Paul Hasluck
DeputyDoug Anthony
Preceded byJohn Gorton
Succeeded byGough Whitlam
4th Leader of the Liberal Party
In office
10 March 1971 – 20 December 1972
DeputyJohn Gorton
Billy Snedden
Preceded byJohn Gorton
Succeeded byBilly Snedden
Deputy Leader of the Liberal Party
In office
20 January 1966 – 10 March 1971
LeaderHarold Holt
John Gorton
Preceded byHarold Holt
Succeeded byJohn Gorton
Minister for Foreign Affairs
In office
12 November 1969 – 22 March 1971
Prime MinisterJohn Gorton
Himself
Preceded byGordon Freeth
Succeeded byLes Bury
Treasurer of Australia
In office
26 January 1966 – 11 November 1969
Prime MinisterHarold Holt
John McEwen
John Gorton
Preceded byHarold Holt
Succeeded byLes Bury
Vice-President of the Executive Council
In office
10 June 1964 – 26 January 1966
Prime MinisterRobert Menzies
Preceded byBill Spooner
Succeeded byAlan Hulme
Minister for Labour and National Service
In office
10 December 1958 – 26 January 1966
Prime MinisterRobert Menzies
Preceded byAthol Townley
Succeeded byHugh Robertson
Minister for Primary Industry
In office
11 January 1956 – 10 December 1958
Prime MinisterRobert Menzies
Preceded byJohn McEwen
Succeeded byCharles Adermann
Minister for Social Services
In office
9 July 1954 – 28 February 1956
Prime MinisterRobert Menzies
Preceded byAthol Townley
Succeeded byHugh Robertson
Minister for the Navy
Minister for the Air Force
In office
17 July 1951 – 9 July 1954
Prime MinisterRobert Menzies
Preceded byPhilip McBride
Succeeded byJosiah Francis (Navy)
Athol Townley (Air Force)
Father of the House
In office
20 September 1980 – 5 January 1982
Preceded byClyde Cameron
Succeeded byMalcolm Fraser
Member of the Parliament of Australia for Lowe
In office
10 December 1949 – 4 January 1982
Preceded byConstituency established
Succeeded byMichael Maher
Personal details
Born
William McMahon

(1908-02-23)23 February 1908
Redfern, New South Wales, Australia
Died31 March 1988(1988-03-31) (aged 80)
Potts Point, New South Wales, Australia
Political partyLiberal
Spouse
(m. 1965)
Children3, including Julian
Alma materUniversity of Sydney
ProfessionLawyer
Signature
Military service
Branch/serviceAustralian Imperial Force
Years of service1940–1945
RankMajor
Unit6th Division
Battles/warsWorld War II

Sir William McMahon[a] (23 February 1908 – 31 March 1988) also called Billy McMahon was an Australian politician who served as the 20th prime minister of Australia from 1971 to 1972. He held office as the leader of the Liberal Party of Australia. He was a government minister for over 21 years, the longest continuous service in Australian history.

McMahon was born and raised in Sydney, and worked as a commercial lawyer before entering politics. He served in the Australian Army during World War II, reaching the rank of major. After the war's end he returned to university to complete an economics degree. McMahon was elected to the House of Representatives at the 1949 federal election. Robert Menzies promoted him to the ministry in 1951 and added him to cabinet in 1956. He held several different portfolios in the Menzies government, most notably as Minister for Labour and National Service from 1958 to 1966. In that capacity, he oversaw the reintroduction of conscription in 1964.

In 1966, Menzies retired and was replaced as prime minister by Harold Holt. McMahon then succeeded Holt as deputy leader of the Liberal Party. He was appointed Treasurer in the Holt government, and over the following three years oversaw a large reduction in the national deficit. After Holt's death in 1967, McMahon wished to contest the Liberal leadership but had his candidacy vetoed by John McEwen, the leader of the Country Party. The new prime minister was John Gorton. McMahon initially continued on as Treasurer in the Gorton government, but in 1969 was demoted to Minister for External Affairs after an unsuccessful challenge for the leadership. He eventually replaced Gorton in March 1971 following Gorton’s resignation, winning a vote against Billy Snedden.

McMahon became prime minister at the age of 63, and remains the oldest non-interim prime minister to take office. His government has been described by the Australian Dictionary of Biography as "a blend of cautious innovation and fundamental orthodoxy". It continued many of the policies of its immediate predecessors, such as the phased withdrawal of Australian troops from Vietnam. In its final year it faced high inflation and unemployment. Gough Whitlam's Labor Party defeated McMahon at the 1972 federal election, ending 23 consecutive years of Coalition rule. No other Australian prime minister has served for longer without winning a general election. He resigned the Liberal leadership, but remained in parliament until 1982 as a backbencher.

McMahon has been described as one of Australia's worst prime ministers by Australian political scientists and historians,[1][2][3][4] and after leaving office several of his former colleagues openly criticised his leadership style and personal character. Whitlam, his successor, acknowledged him as "an extraordinarily skilful, resourceful and tenacious politician", and credited him with having prevented a larger margin of defeat in 1972.


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  1. ^ Abjorensen, Norman; Australia's Top 10 PMs Archived 29 August 2018 at the Wayback Machine, The Canberra Times, 5 December 1992. Retrieved 30 December 2017.
  2. ^ Walker, Tony; Koutsoukis, Jason; "The good, the bad and the couldabeens", The Australian Financial Review, 3 January 2001.
  3. ^ Prime ministers' rank and file Archived 14 November 2012 at the Wayback Machine, The Age, 18 December 2004. Retrieved 30 December 2017.
  4. ^ Strangio, Paul (2013). "Evaluating Prime-Ministerial Performance: The Australian Experience". In Strangio, Paul; 't Hart, Paul; Walter, James (eds.). Understanding Prime-Ministerial Performance: Comparative Perspectives. Oxford University Press. ISBN 9780199666423.