| Regimental number | 3766 |
| Religion | Church of England |
| Occupation | Medical attendant |
| Address | Parkside, South Australia |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, Ralph Schoons Mercer, 29 Norfolk Road, Tonbridge, England |
| Enlistment date | 2 March 1917 |
| Date of enlistment from Nominal Roll | 24 August 1914 |
| Rank on enlistment | Private |
| Unit name | 50th Battalion, 10th Reinforcement |
| AWM Embarkation Roll number | 23/67/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A32 Themistocles on 4 August 1917 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 14th Field Artillery Brigade |
| Fate | Returned to Australia 24 December 1918 |
