Sir Desmond Henry O'Neil was an Australian politician who was a Liberal Party member of the Legislative Assembly of Western Australia from 1959 to 1980. He was a minister in the governments of Sir David Brand and Sir Charles Court, and served as deputy premier to Court between 1975 and 1980.

Sir Charles Walter Michael Court was an Australian politician who was the 21st premier of Western Australia from 1974 to 1982. He was a member of the Western Australian Liberal Party from 1972 to 1982.