| Regimental number | 2940 |
| Place of birth | Kent, England |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Koroit, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Height | 5' 9.5" |
| Weight | 148 lbs |
| Next of kin | Father, H Flatt, 9 Thornington Corner, Halesworth, Suffolk, England |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Private |
| Unit name | 5th Battalion, 9th Reinforcement |
| AWM Embarkation Roll number | 23/22/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A16 Star of Victoria on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 15th Light Trench Mortar Battery |
| Fate | Returned to Australia |
| Miscellaneous information from cemetery records | Plaque in Victorian Garden of Remembrance |
| Discharge date | |
| Other details |
Commenced return to Australia, 16 November 1918; disembarked Sydney for Melbourne, 11 January 1919; discharged (medically unfit), Melbourne, 11 April 1919. Medals: 1914-14 Star, British War Medal, Victory Medal Death attributed to war service. |
| Date of death | |
| Sources | NAA: B2455, FLATT Harold |