Stanley Dunstan was born in Ballarat and was a Bootmaker by trade when he enlisted in the Company 300, Reinforcement on 9 October 1916 at the age of 26. His unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on 11 May 1917. . In early August, soon after arriving in England, he was admitted to the Tidworth Hospital suffering from appendicitis. In February 1918 he moved to France attached to the 1st Australian Siege Brigade Ammunition Column. He was wounded in action on September 10th but he was able to remain on duty. Two weeks later however he was hospitalised again due to illness, and subsequently invalided to the Ontario Military Hospital in Kent where he was listed as dangerously ill suffering from æabdominal adhesions'. He did not return to the battle front but returned to Australia on the Delta, disembarking at Melbourne on March 10th 1919.

Hus Brother, William Dustan (Tree No 1929) also served.
Tree No 2511