| Regimental number | 5571 |
| Place of birth | Dublin, Ireland |
| School | Sherwood State School and Normal School, Brisbane, Queensland |
| Age on arrival in Australia | 5 |
| Religion | Presbyterian |
| Occupation | Stockman |
| Address | Graceville, North Brisbane, Queensland |
| Marital status | Single |
| Age at embarkation | 31 |
| Next of kin | Mother, Mrs Elizabeth Dunn, Graceville, North Brisbane, Queensland |
| Previous military service | Buried in No 2 Military Cemetery, Heilly, France. |
| Enlistment date | |
| Place of enlistment | Brisbane, Queensland |
| Rank on enlistment | Private |
| Unit name | 25th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/42/4 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A46 Clan Macgillivray on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 25th Battalion |
| Fate | Killed in Action |
| Place of death or wounding | Ville-Sur-Ancre, France |
| Age at death | 33.8 |
| Panel number, Roll of Honour, Australian War Memorial | 104 |
| Miscellaneous information from cemetery records | Parents: James Knox and Elizabeth DUNN, Berry Street, Graceville, Queensland. Native of Dublin, Ireland |
| Family/military connections | Brother: 4115 Pte Ralph Knox DUNN, 25th Bn, returned to Australia, 7 February 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Age at death | 53 |
| Sources | NAA: B2455, DUNN William Knox |