
John (known as Warwick) Newman was born on 2 February 1928 at Cullen Bullen near Lithgow in New South Wales, where his father was the mines manager. He attended Sydney Church of England Grammar School (Shore) and commenced medicine at the University of Sydney in 1948. In his second year of medicine, he developed severe type 1 diabetes and needed to take 2 years off from his course. During this time, he took up surveying.