| Regimental number | 640 |
| Place of birth | Unley South Australia |
| Religion | Church of England |
| Occupation | Student |
| Address | Wattle Street, Unley , South Australia |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, M Lewin, Wattle Street, Unley, South Australia |
| Enlistment date | 20 August 1914 |
| Rank on enlistment | Private |
| Unit name | 12th Battalion, E Company |
| AWM Embarkation Roll number | 23/29/1 |
| Embarkation details | Unit embarked from Hobart, Tasmania, on board Transport A2 Geelong on 20 October 1914 |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Returned to Australia 4 May 1916 |
| Miscellaneous details (Nominal Roll) | *Spelt Louis Henry Lewin on NR |