| Regimental number | 944 |
| Place of birth | Ballarat Victoria |
| Religion | Presbyterian |
| Occupation | Photographer |
| Address | 72 Herbert Street, Albert Park, Victoria |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Mother, Mrs Annie Sell, 72 Herbert Street, Albert Park, Victoria |
| Previous military service | 7th Infantry |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | Australian Flying Corps, No 4 Squadron, Headquarters |
| AWM Embarkation Roll number | 8/7/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board RMS Omrah on |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | Australian Flying Corps |
| Fate | Died of wounds |
| Miscellaneous details (Nominal Roll) | *Given name Leslie Simeon |
| Age at death from cemetery records | 26 |
| Place of burial | Hazebrouck Communal Cemetery (Plot III, Row E, Grave No. 2), France |
| Panel number, Roll of Honour, Australian War Memorial | 188 |
| Miscellaneous information from cemetery records | Parents: Charles and Annie SELL, 72 Herbert Street, Albert Park, Victoria. Native of Ballarat, Victoria |