| Regimental number | 668 |
| Religion | Church of England |
| Occupation | Carrier |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs Sarah Jane Whittaker, Beaconsfield, Fremantle, Western Australia |
| Enlistment date | 19 October 1914 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, C Squadron |
| AWM Embarkation Roll number | 10/15/1 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board Transport A52 Surada on 17 February 1915 |
| Regimental number from Nominal Roll | 546 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Light Horse Regiment |
| Fate | Returned to Australia 23 September 1916 |
| Miscellaneous details (Nominal Roll) | *Given name Ogril William |
| Family/military connections | Brother: 1108 Pte Lewis Henry WHITTAKER, 1st Anzac Battalion, Imperial Camel Corps, returned to Australia, 8 March 1917. |