| Regimental number | 1712 |
| Place of birth | Forsyth Street, Glebe Point, Sydney, NSW |
| School | Glebe Superior Public School and Forest Lodge Public School, Sydney, NSW |
| Religion | Church of England |
| Occupation | Electrical |
| Address | 'Phyliss', Wade Street, Campsie, New South Wales |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Mother, Mrs E Hook, Phyllis, Wade Street, Campsie, New South Wales |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 20th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A61 Kanowna on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | z 2 A TMB |
| Other details from Roll of Honour Circular | "Served in Gallipoli until evacuation, and then Sinai Desert and then France. Killed in action whilst defending trench mortar against paid. |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *Given name Harold John |
| Place of death or wounding | France |
| Age at death | 24 |
| Age at death from cemetery records | 24 |
| Place of burial | Brewery Orchard Cemetery (Plot IV, Row C, Grave No, 25), Bois-Grenier, France |
| Panel number, Roll of Honour, Australian War Memorial | 20 |
| Miscellaneous information from cemetery records | Parents: Augustus and Ellen HOOK. Native of Campsie, Sydney, New South Wales |
| Family/military connections | Two cousins: One died of wounds, the other died of illness. |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
