Born 17 October 1876, eldest son of Thomas Fenton of Castletown, Co Sligo, Ireland, and his wife, Mary MacMunn. He was educated at Middleton House School (Dr Conder's), near Bognor, Sussex, and at St Thomas's and St Bartholomew's Hospitals. At St Bartholomew's he served as clinical assistant in the throat and ear department, and was clinical assistant and surgical registrar at the Throat Hospital, Golden Square. Fenton qualified in 1899 and took the Fellowship eleven years later. During the war of 1914-18 he was commissioned as lieutenant, RAMC. He practised at Torquay, South Devon, living at Rialto, Higher Erith Road, and became consulting ear, nose, and throat surgeon to the Paignton and District Hospital, consulting throat and aural surgeon to the Brixham Hospital, and consulting laryngologist to the Torbay Hospital and to the Rosehill Children's Hospital at Torquay. Fenton married twice: (1) in 1901 his cousin Ida Angelina MacMunn; there was one son of the marriage; (2) in 1929 Adelaide Elizabeth Forrest, who survived him but without children. He had retired to Hatchet Mead, Beaulieu, in the New Forest, where he died on 10 March 1947, aged 70.