William Charles Wentworth, usually known as Bill Wentworth and sometimes referred to as William Charles Wentworth IV, was an Australian politician. He was a member of the Liberal Party for most of his career and held ministerial office in the governments of John Gorton and William McMahon, serving as Minister for Social Services (1968–1972) and Minister in charge of Aboriginal Affairs (1968–1971). Wentworth served in the House of Representatives from 1949 to 1977, representing the New South Wales seat of Mackellar. He frequently crossed the floor and served his final months in parliament as an independent.

Edward Gough Whitlam was the 21st prime minister of Australia, serving from 1972 to 1975. He held office as the leader of the Australian Labor Party (ALP), of which he was the longest-serving. He was notable for being the head of a reformist and socially progressive administration that ended with his removal as prime minister after controversially being dismissed by the governor-general of Australia, Sir John Kerr, at the climax of the 1975 constitutional crisis. Whitlam is the only Australian prime minister to have been removed from office by the governor-general.