An American by birth, Edward Patrick Hartigan's family returned to Ireland when he was about five years old. He and his brother Luke joined the 8th Batallion, Royal Munster Fusiliers on 20 August 1915. He was promoted to temporary 2nd Lieutenant on 1 October 1916 and seconded to the Royal Flying Corps as a Flying Officer (observer) on 28 September 1917. Posted to 57 Squadron, Hartigan and his pilot, Captain David Sydney Hall, scored five victories in October 1917. On the morning of 20 November 1917, they were missing in action on the first day of the Battle of Cambrai. The wreckage of their D.H.4 was later found near Les Alleux. Hartigan and Hall are buried in Longuenesse Souvenir Cemetery.
British Army WWI Medal Rolls Index Cards, 1914-1920