| Regimental number | 184 |
| Place of birth | Aldershot, England |
| Religion | Church of England |
| Occupation | Labourer |
| Address | Bordeaux, New South Head Road, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 36 |
| Height | 5' 5.5" |
| Weight | 132 lbs |
| Next of kin | H R Sykes, Main Street, Townsville, Queensland |
| Previous military service | 12 Months for 1st Queensland Riflemen in Africa 12 motnhs cattlerangers in S. Africa |
| Enlistment date | |
| Place of enlistment | Sydney, New South Wales |
| Rank on enlistment | Private |
| Unit name | 3rd Battalion, A Company |
| AWM Embarkation Roll number | 23/20/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A14 Euripides on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 55th Battalion |
| Fate | Returned to Australia |
| Date of death | |
| Age at death from cemetery records | 46 |
| Place of burial | Waverley Cemetery (Portion Church of England, Plot 19, Grave No. 5153), Waverly, New South Wales |
| Panel number, Roll of Honour, Australian War Memorial | 161 |
| Miscellaneous information from cemetery records | Parents: Henry R. aqnd Mary Ann SYKES. Native of Aldershot, Hants, England. Plaque in Garden of Remembrance, NSW. |
| Discharge date | |
| Other details |
Commenced return to Australia on board HT 'Marathon', 15 April 1918; disembarked Melbourne, 12 June 1918, for onward travel to Sydney; discharged (medically unfit), Sydney, 18 July 1918. Medals: 1914-15 Star, British War Medal, Victory Medal Death attributed to war service. |
| Sources | NAA: B2455, SYKES Henry Alexander |