Born in Stawell, Victoria and a Labourer by trade, Robert James Clark enlisted on the 7th of July 1915 in the 46th Battalion, 6th Reinforcement, Australian Imperial Force, with the rank of Private, Number 2640. His Unit embarked from Melbourne, Victoria, on board HMAT A17 'Port Lincoln' on the 20th of October 1916. On the 19th of February 1917 admitted sick to Hospital from the 12th Training Battalion No. 14 Camp Cod and discharged for duty at the 45th Battalion on the 6th of March 1917; admitted sick to Hospital on the 24th of June 1917; On the 17th of July 1918 transferred to 3rd Auxiliary Hospital Gunshot wound left hand mild. On the 28th of January 1918 admitted to the 13th Australian Field Ambulance and wounded in action – gunshot wound mid finger left hand and invalided to U.K. Embarked returned to Australia per D33 'Suevic' ex England on the 20th of November 1918. Disembarked on the 5th of January 1919 and discharged from the 3rd Military District ex A.I.F. on the 16th of February 1919. Tree No. 1612