| Regimental number | 2194 |
| Place of birth | Trangie New South Wales |
| Religion | Presbyterian |
| Occupation | Rough rider |
| Address | Orange, New South Wales |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, James Sykes, Bathurst Road, Orange, New South Wales |
| Enlistment date | 4 October 1914 |
| Date of enlistment from Nominal Roll | 12 October 1914 |
| Rank on enlistment | Private |
| Unit name | 31st Battalion, 3rd Reinforcement |
| AWM Embarkation Roll number | 23/48/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A70 Ballarat on 18 February 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Light Trench Mortar Battery |
| Fate | Returned to Australia 5 April 1919 |
| Family/military connections | Brother: 375 Pte Harold SYKES, 3rd Bn, returned to Australia, 8 October 1918. |
