Arrived in France on the 30 July 1915, serving with the 13th Battalion, Royal Fusiliers. At some point, he was transferred to the 32nd Battalion, Royal Fusiliers and served with them on the Western Front. On the 15 September 1916, the Battalion were in locations 200 yards in front of Delville Wood in the Somme region. During an attack on German positions the Battalion suffered 293 Casualties in Killed, Wounded and Missing. Thomas Alderman was wounded and carried back to an aid station where he later succumbed to his injuries.