Thomas Stanley Sherwood Gregory was born on 9 February 1916 at New Malden, Surrey, the son of Thomas Gregory, manipulative therapist and Ivy, nee Sherwood. He was educated at Newport Grammar School, Essex, Sherborne School and Gonville and Caius College, Cambridge. He studied medicine at St Bartholomew's Hospital, London, and qualified MB BCh in July 1940. He spent a year as house physician at St Bartholomew's and was RSO at the Royal Masonic Hospital for two years, followed by six months as ophthalmic house surgeon at Guy's Hospital. He took the DOMS in 1947 and the FRCS in 1948. During his training he was influenced by J D Morgan Cardell, O Geyer Morgan and F W Law. Gregory was an eye specialist in the RAMC 1944-47 with the rank of Captain. After the war he was in ophthalmic practice in the Aylesbury Health District and became a casualty ophthalmic surgeon for the Aylesbury and High Wycombe Health District. He married Marjory C Geyer in 1943 and had one daughter and a son, P G Gregory who is in general practice. He listed his hobby as 'property improvement'. He died on 17 July 1981 at the age of 65.