| Regimental number | 21817 |
| Place of birth | Camden New South Wales |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 'Maru', Beach Road, Darling Point, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, H.L. Mackellar, same address |
| Enlistment date | 16 June 1917 |
| Rank on enlistment | Sapper |
| Unit name | Engineering Field Companies, General Reinforcements |
| AWM Embarkation Roll number | 14/42/4 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A54 Runic on 22 March 1918 |
| Rank from Nominal Roll | Sapper |
| Unit from Nominal Roll | 1st Army Troops Engineers |
| Fate | Returned to Australia 5 July 1919 |