Born 9 January 1881 at Wavertree, Liverpool, youngest child of Howard Percy Devereux, a Customs and Excise officer, and Martha Slatter, his wife. He was educated at Grove Academy, Edinburgh, at St Oswald's College, Tyneside, and at University College, Dundee, and received his medical training at Edinburgh University, where he graduated in 1903. He served as house surgeon and house physician at Dundee Royal Infirmary, and as house surgeon at Cardiff Royal Infirmary, and curator of pathology at the University College of South Wales. In 1909 he took the English Membership and Fellowship together from the Middlesex Hospital. He was commissioned on 5 August 1914 as captain, RAMC(T) on the outbreak of war, and served at Gallipoli and in Egypt and Palestine, with the 53rd casualty clearing station, Egyptian Expeditionary Force. On 10 November 1915 he was transferred to Cardiff, and later served at Weymouth. Having overtaxed his strength he settled in general practice at Malvern in 1922, living at Howards, Avenue Road, and became surgeon to the Malvern Hospital. He gradually acquired the chief surgical practice in the district, and in the second world war became surgeon to the Emergency Hospital at Powick, near Worcester. He was a member of the Medical Officers of Schools Association, and was chairman of the Worcestershire division of the British Medical Association in 1928-29. Devereux married on 3 April 1918 Gladys Robathan, who survived him with a son and two daughters. He died on 17 March 1942 from septicaemia following pneumonia.