Born in Ballarat, Grenville and a Farm Labourer by trade, Thomas Henry Carroll was 26 years and single when enlisted on the 27th of October 1914 in the 14th Battalion, 2nd Reinforcement, Australian Imperial Force, with the rank of Private, Number 1327. His Unit embarked from Melbourne, Victoria, on board HMAT A46 'Clan Macgillivray' on the 2nd of February 1915. Private joined the 14th Battalion, 2nd Reinforcements on the 5th of January 1915 and attached to 4th Infantry Battalion for special duty on the 30th of March 1916. Reported missing in action in 'Field France' on the 8th of August 1916. Embarked return to Australia per HMAT Suffolk ex England on the 12th of April 1919. Disembarked on the 5th of June 1919 and Private Discharged from the 14th Battalion, 3rd Military District with the Termination of Period of Enlistment on the 4th of August 1919.

His brother Horace also served in the AIF and is honoured with a tree in the Avenue.