| Regimental number | 2340 |
| Place of birth | Westwood Queensland |
| Religion | Presbyterian |
| Occupation | Clerk |
| Address | Rockhampton, Queensland |
| Marital status | Single |
| Age at embarkation | 26 |
| Next of kin | Sister, Miss Irene Lucy Alice Wills, Duranta, North Street, Range, Rockhampton, Queensland |
| Enlistment date | 21 August 1917 |
| Date of enlistment from Nominal Roll | 21 April 1917 |
| Rank on enlistment | Sergeant |
| Unit name | October 1917 Reinforcements |
| AWM Embarkation Roll number | 15/9/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A15 Port Sydney on 9 November 1917 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on 22 December 1917 |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 3rd Light Railway Operating Company |
| Fate | Returned to Australia 3 September 1919 |
| Miscellaneous details (Nominal Roll) | *Given name Mervyn Harold |