| Date of birth | |
| Place of birth | Hobart, Tasmania |
| Religion | Presbyterian |
| Occupation | Journalist |
| Address | Franklin, Tasmania |
| Marital status | Single |
| Age at embarkation | 29 |
| Next of kin | Father, Capt J E Addison, Battery Point, Hobart, Tasmania |
| Previous military service | Served in the 93rd Infantry, Citizen Military Forces. |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Lieutenant |
| Unit name | Australian Flying Corps, No 2 Squadron, A Flight |
| AWM Embarkation Roll number | 8/5/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A38 Ulysses on |
| Rank from Nominal Roll | Major |
| Unit from Nominal Roll | Australian Flying Corps |
| Recommendations (Medals and Awards) |
Mention in Despatches Awarded, and promulgated, 'London Gazette' No. 31728 (12 January 1920); 'Commonwealth Gazette' No. 133 (1 April 1920). |
| Fate | Returned to Australia |
| Medals |
Order of the British Empire Source: 'Commonwealth Gazette' No. 113 Date: |
| Discharge date | |
| Family/military connections | Brother: 2438 Sergeant Wentworth Barry ADDISON, 52nd Bn, killed in action, 3-4 September 1916. |
| Other details |
War service: Egypt, Palestine Medals: Order of the British Empire, British War Medal, Victory Medal |
| Sources | NAA: B2455, ADDISON Sydney Wentworth |