| Regimental number | 51401 |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Point Nepean Road, Moorabbin, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, E E Lessing, Chelsea, Victoria |
| Previous military service | 47th Infantry |
| Enlistment date | 13 February 1918 |
| Date of enlistment from Nominal Roll | 31 January 1918 |
| Rank on enlistment | Private |
| Unit name | 2nd General (Victorian) Reinforcements |
| AWM Embarkation Roll number | 23/111/3 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on 1 May 1918 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 24th Battalion |
| Fate | Returned to Australia 22 July 1919 |
| Family/military connections | Brother: 6836A Pte Otto Ernest LESSING MM, 24th Bn, returned to Australia, 17 March 1919. |