| Regimental number | 3275 |
| Place of birth | Irishtown, Tasmania |
| Other Names | Harry Michael |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Irish Town, Tasmania |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, Thos. John Carroll, Irish Town, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, 7th Reinforcement |
| AWM Embarkation Roll number | 23/43/2 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board HMAT A31 Ajana on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 25 |
| Place of burial | Serre Road Cemetery No. 1 (Plot VII, Row F, Grave No. 12), Beaumont-Hamel, France |
| Panel number, Roll of Honour, Australian War Memorial | 65 |
| Miscellaneous information from cemetery records | Parents: Thomas and Frances CARROLL. Born at Irish Town, Tasmania |
| Family/military connections | Brothers: 4469 Pte Thomas Richard CARROLL, 52nd Bn, killed in action, 4 September 1916; 4470 Pte Richard Thomas CARROLL, 52nd Bn, killed in action, 4 September 1916. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |