Background
Caldwell was born in the Brisbane suburb of Clayfield, Queensland, and educated at Brisbane Grammar School and Newington College (1927–1930).
Caldwell was born in the Brisbane suburb of Clayfield, Queensland, and educated at Brisbane Grammar School and Newington College (1927–1930).
He served as Chairman of the Australian Board from 1972 until 1975 and was a senior executive with the Australia and New Zealand Banking Group. He was a right arm fast medium bowler and right-handed batsman for Northern Districts. On leaving school, Caldwell joined the English, Scottish and Australian Bank and at the time of his retirement was National Assistant general manager, and NSW general manager, of the same organisation, but by then known as the Australia and New Zealand Banking Group. Caldwell played for New South Wales in the Sheffield Shield for three years (1935–1937) and was President of the Northern Districts Club from 1963 until 1968.
He was Chairman of the Australian Board (1972–1975) during a difficult period of modernisation of the game in Australia.