|Date of birth|
|Place of birth||Toowoomba, Queensland|
|Age at embarkation||19|
|Next of kin||Father, James Smith Clarkson, Thane's Creek, Warwick, Queensland|
|Previous military service||Nil|
|Place of enlistment||Toowoomba, Queensland|
|Rank on enlistment||Private|
|Unit name||31st Battalion, 14th Reinforcement|
|AWM Embarkation Roll number||23/48/4|
|Embarkation details||Unit embarked from Sydney, New South Wales, on board HMAT A20 Hororata on
|Rank from Nominal Roll||Private|
|Unit from Nominal Roll||31st Battalion|
|Fate||Returned to Australia
|Family/military connections||Brothers: 3273 Corporal Charles CLARKSON, 49th Bn, returned to Australia, 23 September 1918; 3277 Pte Kenneth Douglas CLARKSON, 49th Bn, returned to Australia, 23 July 1919.|
War service: Western Front
Embarked from Sydney, 14 June 1917; disembarked Liverpool, 26 August 1917.
Proceeded overseas to France, 7 April 1918; taken on strength, 31st Bn, 13 April 1918.
On leave to England, 21 January 1919. Admitted to 3rd Auxiliary Hospital while on leave, 11 February 1919 (influenza). Detached to Administrative Headquarters, 24 February 1919; marched into No. 2 Command Depot, Weymouth, 10 March 1919.
Granted leave for Non-Military Employment, 2 April-21 July 1919, with pay and subsistence and fees of six pounds thirteen shillings four pence to attend London Day Training College, Southampton Row, London. Leave extended, 22 July-31 October 1919, pay and subsistence and fees of seven pounds five shillings.
Commenced return to Australia, 18 December 1919; disembarked Sydney, 7 February 1920; discharged (medically unfit), 18 March 1920.Medals: British War Medal, Victory Medal
|Sources||NAA: B2455, CLARKSON David John|