| Regimental number | 1221 |
| Place of birth | Tipperary, Ireland |
| Religion | Roman Catholic |
| Occupation | Engine driver |
| Address | James Street, Ravenswood, Queensland |
| Marital status | Married |
| Age at embarkation | 31 |
| Next of kin | Wife, Mrs Margaret Honorah Byrne, James Street, Ravenswood, Queensland |
| Enlistment date | 1 May 1916 |
| Place of enlistment | Townsville, Queensland |
| Rank on enlistment | Sergeant |
| Unit name | 42nd Battalion, B Company |
| AWM Embarkation Roll number | 23/59/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board HMAT A30 Borda on 5 June 1916 |
| Regimental number from Nominal Roll | Commissioned |
| Rank from Nominal Roll | Lieutenant |
| Unit from Nominal Roll | 42nd Battalion |
| Fate | Returned to Australia 26 September 1917 |
| Other details | See 940 William James BYRNE. |
| Sources | NAA: B2455, BYRNE William James |