The factory where Dr Aidan MacCarthy was working as forced labour in Nagasaki, the Mitsubishi Corporation Steel & Arms Works was actually the target of the atomic bomb. He was less than a mile from the hypocentre of the explosion.
After the Japanese surrender, Aidan MacCarthy met the captain of the US submarine which sank the Tamahoku Maru killing hundreds of his fellow POWs. Dr MacCarthy met Richard O'Kane, captain of the USS Tang on Okinawa Island in September 1945.
Dr Aidan MacCarthy is believed to be the only person who survived both the evacuation of Dunkirk and the atomic bomb attack on Nagasaki.
Aidan wrote a book about his wartime exploits. It is called "A Doctor's War" and tells of how he survived the war and the effect it had in him