Born in Ballarat, Victoria and a Maltster by trade, Mark Arthur Carroll was 32 years and single when enlisted on the 7th of March 1916 in the 57th Battalion, 2nd Reinforcement, Australian Imperial Force, with the rank of Private, Number 1674. His Unit embarked from Melbourne, Victoria, on board HMAT A14 'Euripides' on the 4th of April 1916. Admitted to Hospital sick in the field, France on the 20th of October 1916. Transferred to 59th Battalion on the 1st of September 1916; admitted to 2nd Southern General Hospital – Pleurisy and Bronchitis on the 6th of November 1916 and embarked on H.S. Austrias at Havre for England – Bronchitis. Proceeded overseas France ex training depot Perham Downs via Southampton on the20th of July 1917. Private wounded in action, France on the 31st of August 1918 and invalided to UK wounded on the 2nd of September 1918. Embarked return to Australia per S.S. 'Nestor' England for shot wound left buttock on the 12th of December 1918 and Discharged from the 3rd Military District on the 11th of March 1919. Tree No. 2213