Born on 16 January 1891 the only child of Dr Arthur Edwin Mason LSA of West Hampstead and Alice Mary Courtenay Cole his wife, he was educated at the Haberdashers Aske's Hampstead School and graduated BA in four subjects at London University. He took his clinical training at Middlesex Hospital, qualifying in 1916. He served in the RAMC during the war, being promoted Captain on 13 September 1918. He proceeded to the Fellowship and the London MS in 1920. After serving as surgical registrar at Middlesex Hospital and clinical assistant at the Hospital for Sick Children, Great Ormond Street, he specialised as a laryngologist. He was registrar in the Throat Hospital, Golden Square, and clinical assistant in the ear nose and throat department at the Middlesex Hospital; in due course he was appointed surgeon to the ear nose and throat departments at the Seamen's Hospital, Greenwich, the King George Hospital, Ilford, and the West Middlesex Hospital, and was oto-rhino-laryngology consultant to the London County Council. He practised at 18 Harley Street. Mason married in 1928 Muriel Blomfield Jackson, who survived him with a son and daughter. He died at his house, 14 Gainsborough Gardens, Hampstead on 5 July 1953, aged 62.