Marshall Coulter MacAulay was the son of Michael John MacAulay and Martha MacAulay (nee Coulter). Marshall was born about 1885 in Caledon, County Tyrone. By 1901 the family were living in Castlesaunderson, County Cavan. His father ws a gamekeeper.By 1911 Marshall worked as a Gardener and Domestic Servant. Marshall enlisted in Belfast whilst residing in Belturbet, County Cavan. Sergeant Marshall Coulter MacAulay was serving with the 13th Battalion of the Royal Irish Rifles when he was killed in action in France on 14th February 1917. He was 27 years old.
St. Quentin Cabaret Military Cemetery is located 10.5 Kms south of Ieper town centre, on a road leading from the Rijselseweg N365, which connects Ieper to Wijtschate, Mesen (Messines) 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.