| Regimental number | ... |
| Place of birth | Rockhampton Queensland |
| School | Maryborough Grammar School, Queensland |
| Religion | Church of England |
| Occupation | Overseer |
| Address | Stainburn Downs, Aramac, Queensland |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Mother, E C Barnett, Fairview, The Range Rockhampton, Queensland |
| Previous military service | Served in the Maryborough Grammar School Cadets, Queensland |
| Enlistment date | |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 12th Battalion, 17th Reinforcement |
| AWM Embarkation Roll number | 23/29/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Hawkes Bay on |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 9th Battalion |
| Fate | Died of disease |
| Place of death or wounding | nr Flers, France |
| Date of death | |
| Age at death | 26 |
| Place of burial | A.I.F. Burial Ground, (Plot IX, Row E, Grave No. 5), Grass Lane, Flers, France |
| Panel number, Roll of Honour, Australian War Memorial | 55 |
| Miscellaneous information from cemetery records | Parents: Joseph Jupp Smallman and Emily Caroline BARNETT, Range, Rockhampton, Queensland |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |