O'BRIEN, JACK LOCKYER (1909-1965), historian, was born on 30 December 1909 at
Adelong, New South Wales, second surviving child of Australian-born parents
Richard Thomas Lockyer O'Brien, miner, and his wife Selina Rachel, née Crain.
Influenced by his classics master John Gibbs at Sydney Boys' High School, 'John'
O'Brien was awarded a scholarship to the University of Sydney (B.A., 1930) where
he graduated with first-class honours and won the university medal in classics. He
then proceeded to Emmanuel College, Cambridge (B.A., 1932).
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Australian Dictionary of Biography