Born in Wellington, Victoria and a Drainer by trade, Thomas William Caddy was 42 years and married when enlisted on the 24th of March 1917 in the 4th Light Horse Regiment, 28th Reinforcement, Australian Imperial Force, with the rank of Private, Number 3676. His Unit embarked from Melbourne, Victoria, on board HMAT A32 'Themistocles' on the 4th of August 1917 disembarked Glasgow, Scotland, 2 October 1917; marched in to No 3 Details Camp, Parkhouse, 3rd of October 1917. Transferred to Artillery Details, Larkhill, 6th of October 1917, and mustered as Gunner. Proceeded overseas to France on the 16th of January 1918; taken on strength in the 10th Field Artillery Brigade on the 22nd of January 1918 and appointed Driver on the 26th of February 1918. Wounded in action on the 8th of August 1918 (shrapnel wound, right shoulder), and admitted to 13th Australian Field Ambulance; Admitted to 134th Field Ambulance on the 10th of October 1918 (lumbago), and transferred same day to 41st Casualty Clearing Station; Discharged on furlough on the 8th of November 1918 to report to No 4 Command Depot, Hurdcott on the 22nd of November 1918. Commenced return to Australia on board HT 'Orontes', 20 January 1919; disembarked Melbourne on the 30th of January 1919; discharged (medically unfit) on the 19th of June 1919. War service: Western Front Tree No. 2739