| Regimental number | 344 |
| Date of birth | |
| Place of birth | Prahran, Victoria |
| Religion | Church of England |
| Occupation | School teacher |
| Address | 392 Latrobe Street, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 18.7 |
| Height | 5' 10.5" |
| Weight | 148 lbs |
| Next of kin | Father, Wm Cawthorn, Rokeby, Gippsland, Victoria |
| Previous military service | Served in the Senior Cadets; still serving at time of AIF enlistment. |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Sergeant |
| Unit name | 22nd Battalion, B Company |
| AWM Embarkation Roll number | 23/39/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Captain |
| Unit from Nominal Roll | 22nd Battalion |
| Promotions |
2nd Lieutenant Unit: INF22 Promotion date: Lieutenant Unit: INF22 Promotion date: |
| Fate | Discharged |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli, Western Front Wounded in action, France, 27 June 1916 (gun shot wound, left upper abdomen: severe). Discharged in London, 12 February 1918, on being appointed to a Commission in the Indian Army. |
| Date of death | |
| Age at death | 74 |
| Sources | NAA: B2455, CAWTHORN Walter Joseph |