| Regimental number | 850 |
| Place of birth | Woollahra, New South Wales |
| School | Woollahra Superior Public School, New South Wales |
| Religion | Presbyterian |
| Occupation | Tram conductor |
| Address | 16 Denison Street, Waverley, New South Wales |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Mother, Mrs Mary Falle, 16 Denison Street, Waverley, New South Wales |
| Previous military service | St George's Rifles |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 19th Battalion, C Company |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT Ceramic on |
| Other details from Roll of Honour Circular | Private Leslie FALLE, 488, enlisted previously on 11 August 1914 in the Naval and Military Expeditionary Force (Tropical Unit), E Company |
| Fate | Killed in Action |
| Place of death or wounding | Ypres, Belgium |
| Age at death | 24 |
| Age at death from cemetery records | 24 |
| Place of burial | Railway Dugouts Burial Grounds (Transport Farm), Zillebeke (Plot VI, Row M, Grave 27), Belgium |
| Panel number, Roll of Honour, Australian War Memorial | 88 |
| Miscellaneous information from cemetery records | Parents: John and Mary FALLE, 'Eden', 53 Ebley Street, Waverley, New South Wales |
| Family/military connections | Cousin: Hugh FALLE, Private 2320, 31st Bn. Died of Disease (broncho-pneumonia) 1 January 1917 |