| Regimental number | 614 |
| Place of birth | Sydney New South Wales |
| Religion | Methodist |
| Occupation | Farmer |
| Address | Landsborough, NC Line |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Mother, Mrs E Dayman, Landsborough, NC Line |
| Enlistment date | 5 February 1915 |
| Rank on enlistment | Private |
| Unit name | 25th Battalion, C Company |
| AWM Embarkation Roll number | 23/42/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A60 Aeneas on 29 June 1915 |
| Rank from Nominal Roll | Lance Sergeant |
| Unit from Nominal Roll | 2nd Machine Gun Battalion |
| Fate | Returned to Australia 28 September 1919 |
| Miscellaneous details (Nominal Roll) | *Spelt Mervyn Dayman on NR |
| Date of death | 21 August 1971 |
| Place of burial | Mt Thompson Crematorium |