| Regimental number | 4795 |
| Date of birth | |
| Place of birth | Grafton, Clarence River, New South Wales |
| Place of birth | Drummoyne, New South Wales |
| School | Grafton Public School, New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 8 Dillon Street, Paddington, New South Wales |
| Marital status | Married |
| Age at embarkation | 27 |
| Next of kin | Wife, Mrs G Mansfield, 8 Dillon Street, Paddington, New South Wales |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Acting Corporal |
| Unit name | 20th Battalion, 12th Reinforcement |
| AWM Embarkation Roll number | 23/37/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A40 Ceramic on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 20th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | Albert, France |
| Age at death | 29 |
| Age at death from cemetery records | 29 |
| Place of burial | Heilly Station Cemetery (Plot V, Row D, Grave No. 36), Mericourt-L'Abbe, France |
| Panel number, Roll of Honour, Australian War Memorial | 91 |
| Miscellaneous information from cemetery records | Son of Leslie MANSFIELD. Native of Grafton, New South Wales |
| Family/military connections | Brother-in-law: 18045 Corporal Clarence Griffith FOWLER, 2nd Field Company Engineers, returned to Australia, 29 April 1919. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |