| Regimental number | 28 |
| Place of birth | Melbourne, Victoria |
| School | State School, Victoria |
| Religion | Church of England |
| Occupation | Seaman |
| Address | 205 Bridge Road, Richmond, Victoria |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, John Blackney, 69 Home Road, Newport, Victoria |
| Previous military service | Served in the Naval Cadets. |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 39th Battalion, A Company |
| AWM Embarkation Roll number | 23/56/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A11 Ascanius on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 7th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | France |
| Date of death | |
| Age at death | 19.4 |
| Age at death from cemetery records | 19 |
| Place of burial | Heilly Station Cemetery (Plot VI, Row G, Grave No. 12), Mericourt-L'Abbe, France |
| Panel number, Roll of Honour, Australian War Memorial | 49 |
| Miscellaneous information from cemetery records | Parents: John and Frances Alice BLACKNEY, 13 Glover Street, Albert Park, Victoria. Native of Geelong |
| Family/military connections | Brother: 2030 Pte Stanley Richard BLACKNEY, 60th Bn, returned to Australia, 17 August 1916. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
