Rt Hon Doug Anthony, MP: Deputy Prime Minister, Minister for Trade and Industry (CP)
Rt Hon John Gorton, MP: Minister for Defence (to 13 August 1971)
Rt Hon Ian Sinclair, MP: Minister for Primary Industry (CP)
Senator Hon Sir Kenneth Anderson: Minister for Supply (to 2 August 1971). Minister for Health (from 2 August 1971)
Hon Sir Reginald Swartz, MP: Minister for National Development
Rt Hon Billy Snedden, QC MP: Minister for Labour and National Service (to 22 March 1971). Treasurer (from 22 March 1971)
Hon Nigel Bowen, QC MP: Minister for Education and Science (to 22 March 1971). Attorney-General (22 March 1971 to 2 August 1971). Minister for Foreign Affairs (from 2 August 1971)
Hon Alan Hulme, MP: Postmaster-General, Vice-President of the Executive Council. Minister administering the Department of the Vice-President of the Executive Council (22 March 1971 to 30 May 1971)
Hon Leslie Bury, MP: Treasurer (to 22 March 1971). Minister for Foreign Affairs (22 March 1971 to 2 August 1971)
Hon Peter Nixon, MP: Minister for Shipping and Transport (CP)
Hon David Fairbairn, MP: Minister for Education and Science (22 March 1971 to 20 August 1971). Minister for Defence (from 20 August 1971)
Hon Malcolm Fraser, MP: Minister for Education and Science (from 20 August 1971)
Junior ministry
Hon Charles Barnes, MP: Minister for External Territories (to 25 January 1972) (CP)
Hon Dr James Forbes, MP: Minister for Health (to 22 March 1971). Minister for Immigration (from 22 March 1971)
Senator Hon Dame Annabelle Rankin: Minister for Housing (to 22 March 1971)
Hon Philip Lynch, MP: Minister for Immigration (to 22 March 1971). Minister for Labour and National Service (from 22 March 1971). Minister assisting the Treasurer (to 22 March 1971)
Hon Bill Wentworth, MP: Minister for Social Services. Minister in charge of Aboriginal Affairs under the Prime Minister (to 31 May 1971)
Senator Hon Reginald Wright: Minister for Works. Minister in charge of Tourist Activities (to 31 May 1971)
Hon Don Chipp, MP: Minister for Customs and Excise. Minister assisting the Minister for National Development (from 27 May 1971)
Senator Hon Robert Cotton: Minister for Civil Aviation
Senator Hon Thomas Drake-Brockman: Minister for Air (CP)
Hon Mac Holten, MP: Minister for Repatriation (CP)
Hon Thomas Hughes, MP: Attorney-General (to 22 March 1971)
Hon James Killen: Minister for the Navy (to 22 March 1971)
Hon Andrew Peacock, MP: Minister for the Army (to 2 February 1972). Minister for External Territories (from 2 February 1972). Minister assisting the Prime Minister (to 25 May 1971). Minister assisting the Treasurer (25 May 1971 to 2 February 1972)
Hon Ralph Hunt, MP: Minister for the Interior (CP)
Hon Kevin Cairns, MP: Minister for Housing (from 22 March 1971)
Senator Hon Ivor Greenwood: Minister for Health (22 March 1971 to 2 August 1971). Attorney-General (from 2 August 1971)
Hon Dr Malcolm Mackay, MP: Minister for the Navy (from 22 March 1971)
Hon Peter Howson, MP: Minister for the Environment, Aborigines and the Arts (from 31 May 1971)
Hon Victor Garland, MP: Minister for Supply (from 2 August 1971). Minister assisting the Treasurer (from 21 March 1972)
Hon Robert Katter, MP: Minister for the Army (from 2 February 1972) (CP)
Hon Donald Dobie, MP: Assistant Minister assisting the Prime Minister (from 20 August 1971)
Hon John McLeay, MP: Assistant Minister assisting the Minister for Civil Aviation (from 20 August 1971)
Hon Ian Robinson, MP: Assistant Minister assisting the Postmaster-General (from 20 August 1971) (CP)
Hon Tony Street, MP: Assistant Minister assisting the Minister for Labour and National Service (from 20 August 1971)
Senator Hon John Marriott: Assistant Minister assisting the Minister for Health (from 14 September 1971)
Hon Robert King, MP: Assistant Minister assisting the Minister for Primary Industry (from 5 October 1971) (CP)
McMahon was elected to the House of Representatives for the Sydney seat of Lowe in 1949, one of the flood of new Liberal MPs known as the "forty-niners." He was capable and ambitious, and in 1951 Prime Minister Robert Menzies made him Minister for the Navy.
McMahon lost his nerve, and in the December 1972 election campaign he was outperformed by Whitlam and subjected to further humiliation in the press.
McMahon was appointed a Privy Counsellor in 1966, a Companion of Honour in 1972 and Knight Grand Cross of the Order of St Michael and St George in 1977.