| Regimental number | 37430 |
| Place of birth | Darlinghurst, Sydney, New South Wales |
| School | Newington College and Sydney Grammar School, New South Wales |
| Other training | Second year undergraduate in medicine at University of Sydney. |
| Religion | Methodist |
| Occupation | Medical student |
| Address | 'Inglewood', Trafalgar Street, Stanmore, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Henry Thomas Leggo, 'Inglewood', Trafalgar Street, Stanmore, Sydney, New South Wales |
| Previous military service | Served for 3 years at Sydney Grammar School Volunteer Cadets "Corporal". Four years compulsory Senior Cadets "Corporal". Three years 9th Light Horse "Acting Sergeant". |
| Enlistment date | |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade, Reinforcement 30 |
| AWM Embarkation Roll number | 13/128/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A15 Port Sydney on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 10th Field Artillery Brigade |
| Other details from Roll of Honour Circular | Played first grade cricket and first grade football. |
| Fate | Died of wounds |
| Place of death or wounding | France |
| Age at death | 24 |
| Place of burial | Roisel Communal Cemetery Extension (Plot II, Row C, Grave No. 16), France |
| Panel number, Roll of Honour, Australian War Memorial | 16 |
| Miscellaneous information from cemetery records | Parents: Henry and Elizabeth LEGGO, 'Inglewood', 115 Trafalgar Street, Stanmore, New South Wales |
| Family/military connections | He was cousin to Horace Bernard of N Qld who died in Camp at Cootamundra NSW, whilst preparing for proceeding to Western Front. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |