William Alexander Duncan Drummond was born in Cape Town on 16 September 1901 where his father was then working for the Anglo-American Tobacco Company. The family later returned to England. Having initially studied engineering and lost two fingers of his left hand in an accident at the Liverpool ship

Hugh Guerrier was a consultant surgeon in Torbay. He was born in Muswell Hill, London, on 2 January 1913, the only son of Arthur Philip Guerrier, a solicitor, and his wife, Hilda Gwendolene née Davies, whose father was a general practitioner. Hugh was educated at Cambridge House School, Margate, and

Norman Hughes was born in Bangor, County Down, on 15 May 1915, the son of William Edwin Hughes, a manager of the Royal Insurance Company in Belfast, and his wife Elizabeth Knox, née Campbell, who was artistic and an enthusiastic gardener and golfer. Hughes was educated at Bangor Grammar School and Q