| Regimental number | 19604 |
| Place of birth | Norwood South Australia |
| Religion | Methodist |
| Occupation | Teacher |
| Address | Montacute, South Australia |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, T Trebilcock, Fifth Creek, Montacute, South Australia |
| Previous military service | 28th Field Company Army Engineers |
| Enlistment date | 29 June 1917 |
| Rank on enlistment | Private |
| Unit name | Army Medical Corps, October 1917 Reinforcements |
| AWM Embarkation Roll number | 26/99/2 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on 22 March 1918 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | Artillery Details |
| Fate | Returned to Australia 25 March 1919 |
| Family/military connections | Brother: 2489 Lance Corporal Frank Herbert TREBILCOCK, 27th Bn, died of wounds, 20 September 1917. |