William McCurdy was the son of Alexander and Annie McCurdy. He was born on 23rd March 1896. He was one of at least eight children. They were a farming family from Artnagross, Kilrea. Williamís mother died in 1905. His father remarried. Rifleman William McCurdy was involved in the retreat from the German armies in the Spring Offensive of March 1918 and was taken prisoner and died of wounds on the 3rd April 1918.
St. Souplet is a village about 6 kilometres south of Le Cateau, which is a small town approximately 20 kilometres south-east of Cambrai. St Souplet British Cemetery lies to the south-west of the village after the village of St. Benin.