
| Regimental number | 2167 |
| Place of birth | Sligo Ireland |
| Religion | Roman Catholic |
| Occupation | Miner |
| Address | Teralba via Newcastle, New South Wales |
| Marital status | Single |
| Age at embarkation | 28 |
| Next of kin | Mother, Mrs M Marrion, Chaffpool PO, Corry, Ireland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 17th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/34/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A8 Argyllshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 17th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 26 |
| Place of burial | Gordon Dump Cemetery (Plot I, Row B, Grave No. 24), Ovillers-La Boiselle, France |
| Panel number, Roll of Honour, Australian War Memorial | 83 |
| Miscellaneous information from cemetery records | Parents: Lawrence and Mary MARREN, Powelsboro, Chaffpool, Ballymore, Co. Sligo, Ireland. Enlisted 1914. Stated to be MARREN, THOMAS, served as MARRION, Thomas |