Owen McGill was born in Donaghmore, County Tyrone about 1876. The 1911 census records Owen as age 35 living with his wife and family at house 5 in Castlecaulfield Town, Tyrone. He was working as an insurance agent. His wife Jane was a linen spinner. They had three children and had been married 13 years, implying they were married about 1898. Rifleman Owen McGill was serving with "B" Company of the 1st Battalion of the Royal Irish Rifles when he was killed in action in France on 25th September 1915. He was 39 years old.
The Ploegsteert Memorial stands in Berks Cemetery Extension, which is located 12.5 Kms south of Ieper town centre, on the N365 leading from Ieper to Mesen (Messines), Ploegsteert and on to Armentieres. From Ieper town centre the Rijselsestraat runs from the market square, through the Lille Gate (Rijselpoort) and directly over the crossroads with the Ieper ring road. The road name then changes to the Rijselseweg (N336). 3.5 Kms along the N336 lies a fork junction with the N365. The N365, which forms the right hand fork, leads to the town of Mesen. The Cemetery lies 3 Kms beyond Mesen on the right hand side of the N365, and opposite Hyde Park Corner Royal Berks Cemetery.