| Regimental number | 634 |
| Place of birth | Windsor, New South Wales |
| Other Names | Henry Sidney |
| Religion | Methodist |
| Occupation | Timber worker |
| Address | Leets Vale, Hawkesbury River, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Height | 5' 5.5" |
| Weight | 136 lbs |
| Next of kin | Father, Jonathan Leet, Leets Vale, Hawkesbury River, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Roseberry Park, New South Wales |
| Rank on enlistment | Private |
| Unit name | 13th Battalion, F Company |
| AWM Embarkation Roll number | 23/30/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board Transport A38 Ulysses on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 13th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli Embarked Alexandria to join the Mediterranean expeditionary Force, Gallipoli, 12 April 1915. Admitted to 15th General Hospital, Alexandria, 4 May 1915 (pneumonia: dangerous). Embarked Alexandria for England, 17 July 1915; admitted to King George V Hospital, London, 27 July 1915 (flagellate dysentery (shiga.), right lung affected; fibrosis and bronchiectasis following pneumonia). Commenced return to Australia from Portland on board HS 'Ascanius', 17 March 1916; arrived, 30 April 1916; discharged (medically unfit), Melbourne, 30 September 1916. Medals: 1914-15 Star, British War Medal, Victory Medal |