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 the RAAF and served as a pilot from 1943 to 1946. After demobilisation he studied medicine at Trinity College, Melbourne. He travelled to the UK, having worked for a while at the Royal Melbourne Hospital. At the Hammersmith Hospital he worked with the professor of surgery, Ian Aird. He passed the fellowship of the college in 1958. On his return to Australia, he worked at the Austin Hospital in Melbourne before being appointed consultant surgeon to the Geelong Hospital in 1962. He married Susanna (Sue) née Heath also in 1962 and they had a son, Sam, and daughter, Kate. A keen farmer, he also enjoyed playing golf. He died on 20 November 1920 aged 96, survived by Sue, his children, their partners, Chris and Abesi, and grandchildren William and Jimena.