Maurice's father was Ernest Alexanderson Wright (1865-1925), vicar of St Johns, Hull, later of All Saints, Clapham Park, London. Maurice's mother was Agnes Worthington (1866-1934 - she died of heart failure while being driven by Maurice); she was a daughter of Dublin-born Joseph Hall Worthington (1822-1903), merchant and shipowner, and his wife Rhoda Agnes Brooke. Maurice's sister Kathleen was shot dead by the IRA in 1921, an innocent spectator at a cricket match in Trinity College, Dublin.
Maurice attended Dulwich College 1921-25, then went up to Jesus College, Cambridge in October 1926. In June 1928 he was awarded Class III in the Classical Tripos Part 1; his MA was conferred in April 1939.
In 1939 Maurice was appointed joint headmaster of The Leas, along with Francis Fetherstonhaugh, by Tim Dealtry. But he left very soon for war service, appointed 2nd Lieutenant, Royal Irish Fusiliers, on 5 March 1940.
When Maurice returned from war service, he found Henry Silcock and Sydney Procter firmly installed. So he went off and set up his own prep school: Marsh Court, Stockbridge, Hampshire. He was soon joined at Marsh Court by David 'Watty' Watkinson, who had been both pupil (c1930-c1936) and teacher (c1946-1948) at The Leas.
In 1946 Maurice married Mary Gray Campbell Crum; they had 4 children.