| Regimental number | 15 |
| Place of birth | Milparinka, New South Wales |
| Religion | Presbyterian |
| Occupation | Grazier |
| Address | Toowoomba, Queensland |
| Marital status | Single |
| Age at embarkation | 21.3 |
| Height | 5' 9" |
| Weight | 150 lbs |
| Next of kin | Father, James Lang, Charow, Jimbour via Dalby, Queensland |
| Previous military service | Served for 6 months in the Militia, Area 11A. |
| Enlistment date | |
| Place of enlistment | Toowoomba, Queensland |
| Rank on enlistment | Corporal |
| Unit name | 14th Light Horse Regiment, A Squadron |
| AWM Embarkation Roll number | 10/19/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A72 Beltana on |
| Regimental number from Nominal Roll | 14 |
| Unit from Nominal Roll | 31st Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brothers: 3084 Pte James Andrew LANG, 26th Bn, returned to Australia, 5 April 1919; 56917 Pte Kenneth Allan LANG, 1st Machine Gun Squadron, returned to Australia, 16 May 1919. |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'Miltiades' 19 June 1919; disembarked, Sydney, 8 August 1919; discharged (termination of period of enlistment), Brisbane, 23 September 1919. Medals: British War Medal, Victory Medal |
| Miscellaneous details | Place of birth incorrectly entered on NAA site as Milpainka, New South Wales. |
| Sources | NAA: B2455, LANG Douglas Robert |