| Regimental number | 1007 |
| Place of birth | Orange New South Wales |
| Religion | Methodist |
| Occupation | Farmer |
| Address | c/o G B Chapman, Spring Hill, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, G B Chapman, Spring Hill, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 1st Light Horse Regiment, 6th Reinforcement |
| AWM Embarkation Roll number | 10/6/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A65 Clan McEwen on |
| Rank from Nominal Roll | Lance Corporal |
| Unit from Nominal Roll | 1st Light Horse Regiment |
| Recommendations (Medals and Awards) |
Mention in Despatches Recommendation date: Unspecified Recommendation date: Mention in Despatches Awarded, and promulgated, 'London Gazette' No. 31138 (22 January 1919); 'Commonwealth Gazette' No. 61 (23 May 1919). |
| Fate | Returned to Australia |
| Miscellaneous details (Nominal Roll) | *Noted CHAPMAN George Denis NR |
| Family/military connections | Brother: 1006 Lance Corporal Benjamin Barnett CHAPMAN, 2nd Machine Gun Squadron, returned to Australia, 27 June 1919; Cousin: 1009 Driver Alfred CHAPMAN, 2nd Machine Gun Squadron, killed in action, 5 November 1917. |
| Other details |
Medals: 1914-15 Star, British War Medal, Victory Medal |