Jonathan Marrow was born on 6 March 1944 in Watford. It was during the second world war and apparently there was an air raid at the time. He was the son of two teachers, Norman Marrow and his wife Margaret née Hyatt. His parents were practising Quakers, humanitarians and pacifists. Educated at Watford Grammar School he studied medicine at University College London Medical School and graduated MB, BS in 1968. He was later to note that, as he had no medical background, he had little idea of the career structure. Initially he worked at a small hospital in North London where he found the wide variety of ailments he was presented with in the casualty department quite a challenge. He then moved to Tunbridge Wells and did training posts in obstetrics and paediatrics before being sponsored by the government to undertake a course in tropical medicine run by the army. In 1970 he travelled to Africa and became a government medical officer at the Sekgoma Memorial Hospital in Serowe, Botswana. After two years, in 1972, he and his family returned to the UK and he was appointed senior registrar in the accident and emergency department of Hull Royal Infirmary. From there he moved to the recently built Arrowe Park Hospital in Birkenhead, remaining there as consultant and clinical director in emergency medicine from 1980 until 2006. He was very much involved in the work of the British Association for Accident and Emergency Medicine and, after retirement, became vice president of the Royal College of Emergency Medicine (RCEM) where he was acknowledged as a founding fellow. Chair of the RCEM training committee, he contributed a great deal to the training of future A&E doctors and remained highly involved with this work all his life. When he retired from Arrowe Park, he moved to Cheshire and became fascinated by local history, giving many interesting talks on disasters that had happened in the area. He had married Angela née Mahler in 1967 and they had three children. Sadly she died prematurely in 1976 and he later married Clari née Badzire who was a local widow with two children When he died on 26 August 2019, aged 75, Clari survived him as did his five children, seven grandchildren and sister, Bridget.