Wallace was born 5 April 1890 in Holywood. He had 4 brothers. In 1911, Wallace was unemployed. His father was a General Practitioner. At this time the family were living at Princess Terrace, Cregagh Road, Belfast. Wallace served with the Royal Irish Rifles (Young Citizens) Battalion in France. He died on 5 July 1916, aged 26, of wounds received at the Battle of the Somme, 1 July 1916 and is buried at the Puchevillers British Cemetery in France. A War Gratuity of £9 was paid to Wallace’s mother as a result of his death. Wallace is included on Woodstock Road war memorial. His younger brother Victor Gordon served / survived WW2 – and is listed on the Cregagh Presbyterian Church Roll of Honour to those from the church who served with the armed forces during that war.