Turnbull was born at
Hamilton, Victoria to farmer Adam Beverly Turnbull and Georgina Agnes, née Drummond. He was mostly educated by his mother, although he did attend state schools for short periods. Following his father's death in 1922, Turnbull and his mother moved to
Warracknabeal, where he was employed as an auctioneer. He took part in several public speaking competitions before he and his mother moved to
Essendon 1933. During this time, he became interested in politics, joining the
Country Party. He attempted to run for the Country Party in the
House of Representatives seat of
Bendigo in 1937, and attempted to take the
Victorian Legislative Assembly seat of
Lowan in 1940, but was unsuccessful in both. In July 1940, Turnbull enlisted in the
Australian Imperial Force and was sent to
Malaya. He was captured at the 1942 fall of
Singapore and was a
prisoner of war for three and a half years at
Changi, where he organised debates among the prisoners. At the end of the war he returned to Australia, unsuccessfully contesting the Legislative Assembly seat of
Borung. ==Federal politics==