| Regimental number | 14020 |
| Place of birth | Melbourne, Victoria |
| Religion | Presbyterian |
| Occupation | Factory manager |
| Address | Victoria Avenue, Albert Park, Victoria |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, A S Aitchison, Victoria Avenue, Albert Park, Victoria |
| Enlistment date | 18 February 1916 |
| Date of enlistment from Nominal Roll | 1 April 1916 |
| Rank on enlistment | Private |
| Unit name | 3rd Australian Casualty Clearing Station |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A7 Medic on 20 May 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Field Ambulance |
| Fate | Returned to Australia 11 November 1917 |
| Family/military connections | Brother: 14021 Pte Roderick Mailer AITCHISON, 3rd Casualty Clearing Station, returned to Australia, 7 July 1919. |