Born in Ballarat, Victoria and a Stockman by occupation, Stanley Robert Clark was 21 years and single when enlisted on the 14th of December 1914 in the 4th Light Horse Field Ambulance, Australian Imperial Force, with the rank of Private, Number 2698. Served in the Base Squadron from the 14th of December 1914 to the 31st of March 1915; In the Base Light Horse on the 1st of April 1915 to the A.A.M.C. base till the 15th of April 1915; 15th Field Ambulance on the 16th of March 1916; 4th Light Horse Field Ambulance, B section on the 16th of April 1915. On the 18th of January 1918 admitted to Hospital sick in France and re-joined Unit from sick, France on the 29th of January 1918. Embarked per 'Kashmir' for return to Australia on the 9th of March 1919 and Disembarked on the 18th of April 1919 and disembarked on the 9th of March 1919. Discharged from the 4th Military District on the 25th of June 1919 with the Termination of Period of Enlistment. Tree No. 453