Robert Qualye Crellin, or 'Robin' was a consultant surgeon at King's College Hospital. He was born on 31 May 1927, on the Isle of Man, the son of John Frissel Crellin, a company director, and Eileen Flood Jackson. He went to King William's College on the Isle of Man, and then to St Mary's Hospital Medical School, where he represented the university at water polo. After junior appointments at St Mary's, he entered the RNVR for his National Service, becoming a diving physiologist and gaining his deep diving certificate. Having decided on a career in orthopaedics, he trained at Harefield and the Robert Jones and Agnes Hunt Hospital in Oswestry, before becoming senior orthopaedic registrar at King's College Hospital and then consultant. He spent two periods abroad lecturing and operating, in Kuwait and in Kano, Nigeria, during the Biafran civil war. He operated on General Sir Stewart Pringle who had been injured by an IRA bomb. He published several papers, notably on the McMurray osteotomy, was secretary to his section in the Royal Society of Medicine in 1972, and secretary to the British Orthopaedic Association from 1976 to 1977. He married first, Mary Staley, a ward sister at St Mary's, in 1952. They had two sons, John and Perric, one of whom became a doctor, and one daughter Elizabeth. After Mary's death he married Sue, and was stepfather to Marcia, James and Kate. He continued his interest in underwater swimming, as well as yachting, bird-watching and beekeeping. He died on 31 July 1998 of mesothelioma.