Born on 9 January 1875 at Chatteris, Cambridgeshire, the eldest child of James Mitchell Wilson, MB, medical officer of health for Rochdale, Lancashire, and his wife, *née* Shepperson. He was educated at Doncaster Grammar School, and at Gonville and Caius College, Cambridge, where he took third-class honours in the Natural Sciences Tripos, part 1, in 1895. He won a University scholarship at St Mary's Hospital Medical School, and later served the Hospital as surgical registrar. He took the Cambridge Mastership in Surgery in 1905. He was also called to the Bar by Lincoln's Inn. Wilson was appointed senior house surgeon at Sheffield Royal Infirmary, and spent the whole of his professional life in that city. He was for a time surgeon to the Sheffield Children's Hospital, and ultimately senior consulting surgeon to the Royal Hospital and to the King Edward VII Hospital for Surgical Tuberculosis. He was also consulting orthopaedic surgeon to Chesterfield Royal Hospital. He lectured in clinical surgery at Sheffield University, and became president of the Sheffield Medicochirurgical Society. He was chairman of the Sheffield division of the British Medical Association in 1924-25. He was commissioned in the RAMC (T) on 2 January 1909. During the war of 1914-18 he served with the rank of major, attached to the 4th battalion, York and Lancashire Regiment. Wilson practised at 79 Upper Hanover Street, and lived at Riverdale Croft, Ranmoor, Sheffield, but retired early to Derwent House, Beaminster, Dorset. He was twice married: (1) in 1903 to Mary Wright; there were two daughters of this marriage; (2) in 1914 to Vera, daughter of J B Wilkinson, who died in March 1950 without children. Wilson died at his daughter's house at Luddenden, Yorkshire, on 10 December 1951, aged 76. He was a tireless man, who paid great attention to minutiae in all his work. He took great trouble to ensure the welfare of the non-medical staff, nurses, and students at all the hospitals with which he was connected. He maintained a cheerful equanimity in the face of his own suffering from illness and bereavement. Publications: Tuberculous neuritis. *Quart med J Yorkshire*, 1899, 8, 46. Post-operative treatment. *St Mary's Hosp Gaz* 1902, 8, 100. Ulcerative colitis. *Lancet*, 1904, 2, 1208. Hyperkeratosis. *Brit J Derm* 1905, 17, 13.