Jocelyn Adelaide Moore was born in Monkstown, Co Dublin, on 29 August 1904. Her mother was Adelaide Mary Murphy and her father was Major General Sir John Moore, CB, of the Royal Army Veterinary Corps; she was the eldest of their three daughters. She attended Wycombe Abbey School, Bucks, and the Royal Free Hospital School of Medicine. At the Royal Free Hospital she specialised in obstetrics and gynaecology eventually becoming consultant in this field. She passed the Conjoint Diploma in 1929, the Fellowship of the College in 1933 and the Fellowship of the Royal College of Obstetricians and Gynaecologists in 1948. She served on various committees at the Royal Free including education, of which she was chairman, and became Vice Dean. During the second world war she joined the RAMC with the rank of Major as a gynaecological specialist. In 1942 she married a journalist David Symon. In November 1969 she was appointed Professor and head of the department of obstetrics and gynaecology at Ahmadu Bello University, Zaria, Nigeria. While there she became chairman of the medical advisory committee and of the faculty of medicine library committee. She died in February 1979.