| Regimental number | 4221 |
| Place of birth | Melbourne, Victoria |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 100 Grosvenor Street, Balaclava, Victoria |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Mother, Mrs R A Blackett, 100 Grosvenor Street, Balaclava, Victoria |
| Enlistment date | 12 February 1915 |
| Rank on enlistment | Private |
| Unit name | 2nd Field Ambulance, Reinforcement 8 |
| AWM Embarkation Roll number | 26/45/2 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A68 Anchises on 26 August 1915 |
| Regimental number from Nominal Roll | 317 |
| Unit from Nominal Roll | Australian Army Medical Corps |
| Fate | EA |
| Family/military connections | Brother: 15875 Sergeant Playfair BLACKETT, 1st Casualty Clearing Station, returned to Australia, 15 May 1919. |
