| Regimental number | 1754 |
| Place of birth | Coolgardie, Western Australia |
| Religion | Roman Catholic |
| Occupation | Farmer |
| Address | Bunbury, Western Australia |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, Walter Buckley Castieau, Seven Hills, Rowlands, Western Australia |
| Enlistment date | 3 August 1915 |
| Date of enlistment from Nominal Roll | 24 July 1915 |
| Rank on enlistment | Private |
| Unit name | 10th Light Horse Regiment, 11th Reinforcement |
| AWM Embarkation Roll number | 10/15/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A24 Benalla on 1 November 1915 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A32 Themistocles on 13 October 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 10th Light Horse Regiment |
| Fate | Returned to Australia 10 July 1919 |
