John Tonkin

John Trezise Tonkin was an Australian politician who was the premier of Western Australia from 3 March 1971 to 8 April 1974. A member of the Labor Party, Tonkin was a minister in the Willcock, Wise and Hawke state governments. He was a member of the Western Australian Legislative Assembly from 1933 to 1977, making him the longest-serving member of the Parliament of Western Australia as of 2021.