John David was born on 12 July 1912 in Rugby. He was the first son of the Rev Albert Augustus David, DD, who was headmaster of Rugby School and later Bishop of Liverpool, and of Edith Mary Miles whose father had been a civil engineer in Jaipur, India. John was educated at Rugby School and graduated

Ian Robin was a distinguished London ear, nose and throat consultant. He was born at Woodford Green, Essex, on 22 May 1909, the son of Arthur Robin, a Scottish general practitioner, and Elizabeth Parker née Arnold, his American mother. He was educated at Merchiston Castle School, in Edinburgh, and a