Coming from Tavistock he was educated at the London Hospital, and practised throughout his career at Beddington near Wallington, Surrey, in partnership with Dr W S McDougall and others. He retired to Barnstable, where he died on 15 December 1961 aged 83. He was survived by his wife and their son

Born on 7 January 1879 the son of William John Harnett FRCP Ed, LRCSI, of Barnet, Hertfordshire, he was educated at the City of London School and was a scholar of St John's College, Cambridge, where he took first-class honours in the Natural Sciences Tripos, part I, 1899. He entered St Thomas's Hosp