| Religion | Presbyterian |
| Occupation | Analyst |
| Address | New Street, Brighton, Victoria |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, Rbt Weldon, Twyford New Street, Brighton, Victoria |
| Enlistment date | 29 April 1915 |
| Rank on enlistment | 2nd Lieutenant |
| Unit name | 14th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/31/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A68 Anchises on 14 March 1916 |
| Rank from Nominal Roll | 2nd Lieutenant |
| Unit from Nominal Roll | 14th Battalion |
| Fate | Returned to Australia 28 February 1919 |
| Miscellaneous details (Nominal Roll) | *Percy spelt Percival |