| Regimental number | 20348 |
| Place of birth | Mudgee New South Wales |
| Religion | Roman Catholic |
| Occupation | Telephonist |
| Address | Glebe, New South Wales |
| Marital status | Single |
| Age at embarkation | 18 |
| Next of kin | Father, William James Byrnes, 12 Forrest Street, Forest Lodge, Glebe, New South Wales |
| Enlistment date | 2 March 1917 |
| Rank on enlistment | Sapper |
| Unit name | 1st-4th Signal Troops - September, 1917, Reinforcements |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board SS Canberra on 16 November 1919 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Signal Squadron |
| Fate | Returned to Australia 3 July 1919 |