| Regimental number | 909 |
| Place of birth | Hobart Tasmania |
| Religion | Church of England |
| Occupation | Baker |
| Address | Queenstown, Tasmania |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, William George Costain, Queenstown, Tasmania |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 3rd Light Horse Regiment, 4th Reinforcement |
| AWM Embarkation Roll number | 10/8/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A17 Port Lincoln on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 6th Field Artillery Brigade |
| Fate | Returned to Australia |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
