| Regimental number | 36643 |
| Place of birth | Wagga Wagga, New South Wales |
| Religion | Roman Catholic |
| Occupation | Station overseer |
| Address | Rockview Station, Old Junee, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Height | 5' 7.5" |
| Weight | 126 lbs |
| Next of kin | Father, Henry Serdefield Eldershaw, Rockview Station, Old Junee, New South Wales |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | Gunner |
| Unit name | Field Artillery Brigade, Reinforcement 29 |
| 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 |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Western Front Commenced return to Australia on board HT 'City of York', 14 January 1919; arriveded Melbourne, 27 February 1919, for onward travel to Sydney; discharged (termination of period of enlistment), Sydney, 6 April 1919. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 23 |
| Place of burial | Wagga Wagga Monumental Cemetery, New South Wales |
| Sources | NAA: B2455, ELDERSHAW John St Elmo |