| Regimental number | 2478 |
| Place of birth | Adelaide, South Australia |
| Religion | Church of England |
| Occupation | Boilermaker's assistant |
| Address | Adelaide, South Australia |
| Marital status | Single |
| Age at embarkation | 33 |
| Height | 5' 4.5" |
| Weight | 110 lbs |
| Next of kin | Mother, Mrs Isabel Seccombe, 96 Sturt Street, Adelaide, South Australia |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Adelaide, South Australia |
| Rank on enlistment | Private |
| Unit name | 50th Battalion, 5th Reinforcement |
| AWM Embarkation Roll number | 23/67/3 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A73 Commonwealth on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 50th Battalion |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
Commenced return to Australia on board HT 'Armagh', 5 April 1919; disembarked Adelaide, 16 July 1919; discharged (medically unfit), Adelaide, 24 July 1919. Medals: British War Medal, Victory Medal |
| Date of death | |
| Sources | NAA: B2455, SECCOMBE William John |