Andrew Gaston Jessiman was a surgeon and hospital administrator at the Peter Bent Brigham Hospital, Boston. He was also assistant professor of surgery at Harvard Medical School. Born in London on 13 January 1949, he was the son of George Gaston Jessiman, a stockbroker on the London Stock Exchange, and his wife, Muriel Hilda Gwendolin née Hannen. His maternal great grandfather was Sir Morrell Mackenzie, the distinguished ENT surgeon who founded what was then known as the Hospital for Diseases of the Throat in 1868. In the same year he had been called upon to treat the Emperor Frederick III of Germany who was suffering from carcinoma of the throat. Andrew was educated at Stowe School in Buckingham from 1937 and went up to Pembroke College, Cambridge in 1941. He trained at the Westminster Hospital Medical School where he was a scholar in anatomy and physiology and graduated MB, BChir in 1946. In 1947 he became surgical house officer to Sir Stanford Cade and Robert Cox at the Westminster Hospital. From 1948 to 1950 he served with the Royal Air Force as a surgeon with the rank of squadron leader and returned to the Westminster as registrar to his previous mentors. During the four years he spent there he also spent a year as a research fellow at the Peter Bent Brigham Hospital, Harvard Medical School from 1950 to 1951. He had passed the fellowship of the college in 1949. Moving to the USA, he held various surgical appointments from 1954 to 1964, firstly at the Peter Bent Brigham Hospital and Harvard Medical School and also later at the University of Virginia Medical School. His career was abruptly halted by a serious illness and he transferred to work as an administrator at the Peter Bent Brigham. Identifying the late sixties as a period of great social change in the States, he began to assess the role of the teaching hospital in the provision of health care to the surrounding community and studied for a masters degree in public health at the Harvard School of Public Health. For the last 25 years of his professional career he carried out increasingly responsible administrative jobs. He worked with local community leaders to initiate programmes that brought health care out of the parent hospital into the community and set up neighbourhood health centres. In 1980 the Peter Bent Brigham merged with two other hospitals to become the Brigham and Women’s Hospital, which was affiliated with the Harvard Medical School. By the time he retired in 2002 he was the vice-president for the clinical and diagnostic service. An accomplished fly fisherman, he spent his summers in Scourie, Scotland where he had a holiday home. With his sons he enjoyed fishing excursions around the world such as for salmon in Iceland, brown trout in Patagonia and rainbow trout in Alaska. A keen gardener, his garden at home in Nantucket won several awards and he was a renowned cook having had lessons at Le Cordon Bleu in Paris. Some of his recipes appeared in a family recipe book that he wrote. Both he and his wife loved all forms of travel from cruises to African safaris. He was a member of the Harvard Club of Boston, the Flyfisher’s Club of Great Britain, and the Nantucket Yacht Club. He met his wife, Joan née Macintosh of Cleveland, Ohio, when he was at Harvard Medical School and they married on 16 April 1956. They had three sons: Alistair (born 30 September 1957), Hugh Gaston (born 30 September 1958) and Thomas Anthony (born 13 May 1960). When he died on 24 November 2017 aged 93, he was survived by his wife, son Alistair and his wife Deborah, son Hugh and his wife Gray, son Thomas and nine grandchildren Hugh, Andrew, Margaret, Jane, Joan, Nigel, Cooper, Jack and Tyler.