Trevor Lewys Stanhope Baynes was born on 19 February 1911 in Brockley, Kent, the only son of an insurance official, Evan Lewys Baynes and his wife Ethel. He attended Lewisham Park Preparatory School and Dulwich College, before becoming a medical student at St Bartholomew's Hospital, London, winning the Bentley Prize in 1937. His junior hospital jobs were at St Bartholomew's Hospital, where he was house surgeon to the surgical unit during which time he was greatly influenced by Sir James Paterson Ross. He was demonstrator in pathology from 1937 to 1939. During the war he served as Surgeon Lieutenant-Commander in the Royal Naval Volunteer Reserve, taking part in the Salerno and Normandy landings. After the war he returned to St Bartholomew's as chief assistant in obstetrics and gynaecology before being appointed consultant obstetrician and gynaecologist to St Albans Hospital, the Bolingbroke Hospital, the Royal Waterloo Hospital and St Peter's Hospital, Chertsey. During his early consultant years he worked enormously long hours with very little junior staff support. Nevertheless, he found time to write the *Handbook of gynaecology* published in 1951 and to pursue an active interest in lawn tennis. In later years he became Chairman of the Surrey Branch of the Family Planning Association and Chairman of the Surrey Branch of the British Medical Association. He was a Liveryman of the Worshipful Company of Barbers. He died on 26 August after a long and distressing illness survived by his wife, Jean, and two daughters, Shelagh and Moira.