| Regimental number | 3540 |
| Place of birth | Carlton, Victoria |
| School | Christian Brothers (Catholic), Victoria |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | 1 Rule Street, West Richmond, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Mother, Mrs E Gillen, 1 Rule Street, West Richmond, Victoria |
| Previous military service | Served in Compulsory Training. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 22nd Battalion, 8th Reinforcement |
| AWM Embarkation Roll number | 23/39/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A19 Afric on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 13th Field Artillery Brigade |
| Fate | Died as a result of accident |
| Miscellaneous details (Nominal Roll) | *Stated to be Thomas Joseph Gillen on NR |
| Age at death | 20.2 |
| Age at death from cemetery records | 20 |
| Place of burial | Bancourt British Cemetery (Plot II, Row K, Grave No. 10), France |
| Panel number, Roll of Honour, Australian War Memorial | 17 |
| Miscellaneous information from cemetery records | Parents: James and Ellen GILLEN, 1 Rule Street, North Richmond, Victoria |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
