The third son of Sir David Stewart, of Banchory-Devenick, Aberdeen. He was educated at Aberdeen and at St Thomas's Hospital, where he was for three years Clinical Assistant in the Throat Department. He also acted as Clinical Assistant at the Throat Hospital, Golden Square, and was House Surgeon at the Great Ormond Street Hospital for Sick Children. He was then appointed Medical Officer of Health, Tuberculosis Officer, and School Medical Officer for East Suffolk, with his office at the County Hall, Ipswich. He lived at The Cottage, St Edmund's Road, and died there on July 15th, 1923, survived by his widow.