Born at Westcombe Park, Blackheath on 9 June 1883, the only son of A G Mackenzie, FIA, and Beatrice E Dell, his wife. He was educated at Eastbourne College, at Emmanuel College, Cambridge, where he graduated after obtaining a third class in the Natural Sciences Tripos, Part I, and at the Middlesex H

Born 11 October 1882, the third child and only son of Samuel Buckley, FRCS, consulting physician to the Clinical (now the Northern) Hospital for Diseases of Women and Children, Manchester, and his wife, Florence Woolley. He was educated at Rugby and Trinity College, Cambridge, and took first-class h

Born at Southampton in 1884, he was educated at Christ's College, Cambridge, where he took third-class honours in Natural Sciences (1905), and won an exhibition to Guy's Hospital, where he was house surgeon to Sir Charles Symonds. Crook settled in practice in partnership with Dr Astley Roberts at Ea