Hi Jill. Something to helpyou along. Which branch of the Services was he in, RAF, Army, Navy ? Do you know when he was in Ireland and Aden, Do you know his Service number ? I was in RAF and did a short while in Ireland, went out day after Bloody Sunday, Stationed at RAF Aldergrove, Belfast Airport. With a few more details you might find some one with a connection to your Dad. All the best on your search.