| Regimental number | 617 |
| Place of birth | Unley South Australia |
| Religion | Methodist |
| Occupation | Journalist |
| Address | Commercial Road, Hyde Park, South Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Horace Robert Knowles, Commerical Road, Hyde park, South Australia |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, C Company |
| AWM Embarkation Roll number | 23/44/1 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A2 Geelong on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Killed in Action |
| Age at death from cemetery records | 19 |
| Place of burial | A.I.F. Burial Ground, Grass Lane (Plot VIII, Row K, Grave No. 1), Flers, France |
| Panel number, Roll of Honour, Australian War Memorial | 110 |
| Miscellaneous information from cemetery records | Parents: Horace Robert and Violet Caroline KNOWLES, 28 Commercial Road, Hyde Park, South Australia |