Warwick John Cook was a consultant general surgeon at Liverpool Hospital, Sydney, New South Wales. He was born in Sydney on 3 July 1930. His father Marcus Cook was a service manager; his mother Hilda Maude Cook née Thame was a housewife. He had a sister, Nerida. He attended Sydney Boys’ High School

William (Bill) Louther Hunter Armstrong was born in Melbourne, Australia on 27 October 1924. His father, William Louther, was a medical practitioner and his mother, Nita Elizabeth née Hunter, was the daughter of a brewer. Educated at Shepparton State School and Geelong Grammar School, he then joined