Andrew Hallidie Smith, who between 1885 and 1890 took the surname of Hallidie, was born at Richmond, Surrey on 23 June 1862, the third child and second son of Archibald Smith, engineer, and his wife *née* Reece. He was educated at King's College School, London, and at King's College, Cambridge. Hallidie Smith was 21st Wrangler in 1885, the year in which Arthur Berry, elder brother of Sir James Berry, FRCS, was Senior Wrangler, and was placed in the third division of Part 3 of the Mathematical Tripos the next year. He took his medical training at the London Hospital, where he served as house surgeon, surgical registrar and receiving room officer. He had changed his surname before qualifying in 1890. Hallidie settled in practice at St Leonard's, specializing as an ophthalmologist, after having served as chief clinical assistant at Moorfields. He was for many years on the staff of the Royal East Sussex Hospital, St Leonard's, becoming ultimately consulting ophthalmic surgeon. He also had consulting rooms at Eastbourne. After retiring he settled at Linton, Cambridgeshire, living first at Linton House, and later at the Guildhall, where he died on 19 October 1947, aged 85. He was cremated at Cambridge after a funeral service at Linton parish church. Smith Hallidie married in 1897 Alice Maud Mary Deakin, who survived him with a son and a daughter. Mrs Hallidie died on 1 February 1951, aged 91.