| Regimental number | 2484 |
| Place of birth | Bacchus Marsh, Victoria |
| School | Bacchus Marsh State School, Victoria |
| Religion | Baptist |
| Occupation | Farmer |
| Address | Bacchus Marsh, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, Alfred Slack, Bacchus Marsh PO, Bacchus Marsh, Victoria |
| Previous military service | Served in the Citizen Forces. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 2nd Pioneer Battalion, Reinforcement 4 |
| AWM Embarkation Roll number | 14/14/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Pioneer Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Le Sars, France |
| Age at death | 22.9 |
| Age at death from cemetery records | 22 |
| Place of burial | Adanac Military Cemetery (Plot V, Row A, Grave No. I), France |
| Panel number, Roll of Honour, Australian War Memorial | 173 |
| Miscellaneous information from cemetery records | Parents: Alfred and Margaret SLACK, Bacchus Marsh, Victoria |
| Family/military connections | Cousin: Captain Percy Lay M.C., M.M., D.C.M., C.A.G. |