|Date of birth|
|Place of birth||Northwood, England|
|Religion||Church of England|
|Age at embarkation||21|
|Next of kin||Father, Charles Edward Masterman, Bagdad, Tasmania|
|Previous military service||Served for 4 years in the 36th Field Company, Army Engineers; 6 months in the Cadets; 1 year in the Officer Training Corps, England.|
|Place of enlistment||Hobart, Tasmania|
|Rank on enlistment||Private|
|Unit name||40th Battalion, 9th Reinforcement|
|AWM Embarkation Roll number||23/57/2|
|Embarkation details||Unit embarked from Melbourne, Victoria, on board HMAT A60 Aeneas on
|Rank from Nominal Roll||Corporal|
|Unit from Nominal Roll||40th Battalion|
War service: Western Front
Embarked Melbourne, 30 October 1917; admitted to ship's hospital, 19 December 1917; disembarked Devonport, England, 26 December 1917, and admitted to 4th Southern General Hospital, Plymouth (mumps); discharged to No 1 Command Depot, Sutton Veny, 5 February 1918; marched in to 10th Training Bn, Sutton Mandeville, 12 February 1918; marched out to 2nd Training Bn, Fovant, 12 February 1918.
Proceeded overseas to France, 7 April 1918; taken on strength, 40th Bn, 23 April 1918.
Appointed Lance Corporal, 18 May 1918; Temporary Corporal, 30 June 1918.
Reported missing in action, 31 August 1918; subsequently confirmed taken prisoner of war in German hands.
Repatriated from Germany; arrived in England, 9 January 1919.
Granted leave, 13 January-14 February 1919.
Granted leave (Non-Military Employment) with pay and subsistence (fees of £25.0.0), 15 February-20 October 1919, to attend Braesnose College, Oxford University. Leave extended to 31 December 1919. Granted further leave, without pay but with subsistence of £87.0.0 and fees of £24.18.0. On expiry of NME granted leave under special conditions; cancelled as from 22 April 1920.
On being refused extension of leave, he wrote, 15 April 1920, seeking approval of his discharge in England: 'I mean to return to Australia but it is to Australia's benefit as much as my own that I should return fully qualified for my special work.'
Discharged from the AIF in London, 23 April 1920.Medals: British War Medal, Victory Medal