Australian recipient of the Victoria Cross, the highest and most prestigious award for gallantry in the face of the enemy that can be awarded to British and Commonwealth forces.
On 28/29 July 1916 near Pozières, France, during a night attack the infantry was temporarily driven back by the intense machine-gun fire from the enemy trenches. Many wounded were left in "No Man's Land" lying in shell holes. Sergeant Castleton went out twice in the face of this intense fire, and each time brought in a wounded man on his back. He went out a third time and was bringing in another wounded man when he was himself hit in the back and killed instantly.
Grave/memorial at Grave at Pozieres British Military Cemetery, Somme, France. 3 miles NE of Albert. Plot IV, Row L, Grave 43, Headstone.