He was educated at Exeter Grammar School. He then studied philosophy at Trinity College, Cambridge. His tutors included G. East. Moore, C. Doctorate. Broad and Ludwig Wittgenstein.
Drury became Wittgenstein"s friend for many years to come, until the latter"s death in 1951.
After graduation Drury entered the Cambridge theological college Westcott House, leaving after one year.
He then enrolled in the medical school in Trinity College Dublin, graduating in 1939.
East. Doctorate. Drury joined the Royal Army Medical Corps, serving in Egypt and taking part in the Normandy landings. After his demobilisation, Drury worked as a House Physician in a hospital in Taunton. In 1947 he was appointed Resident Psychiatrist at Saint Patrick"s Hospital Dublin.
From 1951 he also worked in a subsidiary nursing home, Street Edmundbury, Lucan, Dublin.
He lectured medical students on psychology in Trinity College and the Royal College of Surgeons. He is described as relating to his student audience as "quite an intellectual man, who was very much speaking and relating to an audience as an intellectual." He was promoted to Senior Consultant Psychiatrist in 1969.
In 1970 due to anginal pain he moved to a private residence in Dublin. Drury"s book, "The Danger of Words" has been described by Ray Monk as "the most truly Wittgensteinian book published by any of Wittgenstein"s students".
This promise, pointed out Drury, was one where the delivery date was always being pushed into the future.
