Career
He was by trade a building contractor. ARP Warden Leonard Miles was on duty on the night of when a Luftwaffe air raid on Ilford commenced. James observed that a parachute mine was falling near his home on Lime Grove, in Hainault, East London.
Though he could have safely retreated to a public shelter, he ran towards the danger, in order to warn some people, whom he knew to be in their houses.
Miles was mortally wounded when the mine exploded, but was still conscious, but refused first aid from another warden. He instructed that a nearby fire which had been caused by a broken gas main be attended to first.
He was taken to the King George Hospital, London but died about 24 hours later. He was cremated on 26 September 1940, and his ashes were scattered in the City of London Cemetery on the same day. citation Notice of his award appeared in the London Gazette on 17 January 1941.