| Regimental number | 5073 |
| Place of birth | The Rock, New South Wales |
| School | The Rock Public School, New South Wales |
| Religion | Presbyterian |
| Occupation | Labourer |
| Address | Bruarong via Yackandarah, Victoria |
| Marital status | Single |
| Age at embarkation | 21.6 |
| Height | 5' 10" |
| Weight | 161 lbs |
| Next of kin | Sister, Mrs Ethel Nicholls, Bruarong via Yackandarah, Victoria |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Wangaratta, Victoria |
| Rank on enlistment | Private |
| Unit name | 22nd Battalion, 13th Reinforcement |
| AWM Embarkation Roll number | 23/39/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A33 Ayrshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 22nd Battalion |
| Fate | Died whilst a Prisoner of War |
| Place of death or wounding | Morchies, France |
| Age at death | 22.4 |
| Age at death from cemetery records | 22 |
| Place of burial | Douchy-les-Ayette British Cemetery (Plot III, Row E, Grave No. 5), France |
| Panel number, Roll of Honour, Australian War Memorial | 97 |
| Miscellaneous information from cemetery records | Parents: Henry and Ellen PEACOCK |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
| Miscellaneous details | Address incorrectly entered on Embarkation Roll as Baurong via Wackandarah, Victoria. |
| Sources | NAA: B2455, PEACOCK William Arthur
Red Cross File No 21108061 |