Sir Percy Claude Spender was an Australian politician, diplomat, and judge. He served in the House of Representatives from 1937 to 1951, including as a cabinet minister under Robert Menzies and Arthur Fadden. He was later Ambassador to the United States (1951–1958) and a member of the International Court of Justice (1958–1967), including as president of the court from 1964 to 1967.

Sir Arthur William Fadden was an Australian politician and accountant who served as the 13th prime minister of Australia from 29 August to 7 October 1941. He was the leader of the Country Party from 1940 to 1958 and served as treasurer of Australia from 1940 to 1941 and 1949 to 1958.