| Place of birth | Glamorgan, Wales |
| Religion | Church of England |
| Occupation | Grazier |
| Address | Camden Park, Menangle, New South Wales |
| Marital status | Single |
| Age at embarkation | 49 |
| Next of kin | Brother, J W Onslow Thompson,Singleton, New South Wales |
| Enlistment date | |
| Rank on enlistment | Lieutenant-Colonel |
| Unit name | 4th Battalion, Headquarters |
| AWM Embarkation Roll number | 23/21/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board TRANSPORT A14 Euripides on |
| Rank from Nominal Roll | Major |
| Unit from Nominal Roll | 4th Battalion |
| Recommendations (Medals and Awards) |
Mention in Despatches Awarded, and gazetted, 'London Gazette', second Supplement, No. 29251 (5 August 1915); 'Commonwealth Gazette', No. 133 (28 October 1915). |
| Fate | Killed in Action |
| Date of death | |
| Place of burial | 4th Battalion Parade Ground Cemetery (Row A, Grave No. 11), Gallipoli, Turkey |
| Panel number, Roll of Honour, Australian War Memorial | 42 |
| Miscellaneous information from cemetery records | Parents: Astley and Udea THOMPSON |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |