MB ChB Edin 1903, MD 1909.
Giles received his medical education at Edinburgh University, King's College and Middlesex Hospital. He was assistant medical superintendent to Bermondsey Parish Infirmary and resident medical officer for Middlesborough Union Hospital before being appointed medical superintendent to South Shields Union Infirmary. In around 1915 Giles was appointed medical superintendent to Hope Hospital Salford and was also medical officer for Salford Old People's Homes and Salford Municipal Maternity and Babies' Hospital. Giles was said to have transformed Hope Hospital from a poor law institution to a well-equipped municipal centre. Giles and his wife were killed by air raids at Hope Hospital in December 1940.