Born in Melbourne, Victoria and a labourer by trade, Frederick William Ayers was 18 years and single when enlisted on the 7th of June 1915 in the Siege Artillery Brigade, Australian Imperial Force, with the rank of Gunner, Number 182. Previous military service was at the Royal Australian Garrison Artillery. His Unit embarked from Melbourne, Victoria, on board HMAT A67 'Orsova' on the 17th of July 1915. Admitted to hospital for dental treatment on the 18th of August 1917. Gunner given new designation in Australian Heavy Artillery Brigade, Australian A.I.F. order No 1192 on the 1st of June 1918. Embarked return to Australia on the 19th of April 1919 per 'Sardinia'. Disembarked on the 8th of June 1919. Discharged on the 7th of August 1919 after termination of period of enlistment. Tree No.1236