John 'Jack' Bradley was a consultant surgeon at Hillingdon and Mount Vernon hospitals. He was born in Paulton, Somerset, on 20 October 1927, the second child and only son of William Henry Bradley, a medical officer and epidemiologist at the Ministry of Health, and Gladys Maud Bradley née Smith, the daughter of a mathematical instrument maker. He was educated at the Cathedral Choir School in Oxford and then Westminster School, and went on to study medicine at Christchurch College, Oxford University. Whilst a student he was a member of the University Air Squadron. He qualified BM BCh in 1952. He carried out his National Service as a squadron leader in the RAF and, in the late 1950s, was a senior medical officer during Operation Grapple, the British nuclear weapon tests of hydrogen bombs on Malden and Christmas islands in the Central Pacific Ocean. He was a house surgeon at the Gordon Hospital, the Royal Northern Hospital and St James', Balham, and then a registrar at Sutton and Cheam Hospital and Westminster Hospital. He subsequently became a resident surgical officer at Brompton Hospital and a senior registrar at St George's Hospital. During his training he particularly remembered being influenced by Lawrence Abel, Stanley Aylett, William Gabriel, Norman Tanner and Lord Brock. He was also a research fellow at the Buckston Browne research farm. Outside medicine he was interested in gardening and building. In 1959 he married Heather Diane Cornell. They had two sons, Russell and Jason, and a daughter, Lesley. He died on 30 September 2013 and was survived by his children and his second wife, Averil Mansfield, a former president of the Association of Surgeons of Great Britain and Ireland and vice president of the Royal College of Surgeons.