Edward G Slesinger was steadfastly a Guy's man working for its medical school and hospital for nearly 60 years. The only break in this period of service was during the first world war when he served as temporary Surgeon-Lieutenant in the Royal Navy being mentioned in despatches, awarded the OBE in 1918 and the Croix de Guerre with Palm. Born in London on 17 March 1888 he was educated at Dulwich College and entered Guy's in 1905. He was Junior Science Scholar gaining the BSc with first class honours in physiology and the Michael Harris Prize in anatomy in 1908. He qualified with honours in medicine in 1911, became FRCS in 1913 and in 1919 won the University Gold Medal in the MS examination. His surgical career at Guy's can be traced from house surgeon, surgical registrar (a position of singular importance in those days), demonstrator in anatomy, chief clinical assistant to the orthopaedic department, assistant surgeon and surgeon in charge of the fracture department, becoming full surgeon in 1933. In the NHS (1948) he was consultant surgeon and consulting surgeon emeritus on his retirement in 1953. Outside Guy's he was surgeon to the North Herts and South Beds Hospital, to St Alfege's Hospital and to the Surgical Home for Boys, Banstead. He rendered distinguished service to Guy's Medical School and Hospital by being Chairman of the Medical Committee and School Council in 1943, Governor of the Hospital in 1946, Governor of the School in 1948, Chairman of the building committee for the new Guy's, Chairman of the Council of Governors of Guy's Hospital 1964 until retiring fully in 1965. His contribution to surgery included the maintenance of the Guy's tradition of concentrating on sound clinical teaching and practical surgical principles for undergraduates and postgraduates alike, indeed setting a fine clinical example earning praise from countless thankful patients. Student editor of the *Guy's Hospital gazette*, BMA Research Scholar 1914 and 1919-20, he subsequently contributed articles and chapters on fractures, abdominal surgery, Crohn's disease and the thyroid. At the College he was Hunterian Professor and examiner for the LDS. In the Royal Society of Medicine he was President of the Clinical Section 1934-36. He married Gladys Eleanor Trench and had two sons. He died on 18 June 1975 aged 87 years.