| Regimental number | 650 |
| Place of birth | Sydney New South Wales |
| Religion | Roman Catholic |
| Occupation | Monitor Telephone |
| Address | Kogarah Road, Kogarah, New South Wales |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Mother, Mrs E Mullarkey, Avoca, Kogarah Road, Kogarah, New South Wales |
| Enlistment date | 26 August 1914 |
| Rank on enlistment | Private |
| Unit name | 2nd Battalion, F Company |
| AWM Embarkation Roll number | 23/19/1 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board Transport A23 Suffolk on 18 October 1914 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Battalion |
| Fate | Returned to Australia 11 March 1916 |
| Family/military connections | Brothers: 1588 Company Sergeant Major Hubert William MULLARKEY, 4th Bn, killed in action, 18 August 1916; [1047] Lt James Charles MULLARKEY, 2nd Pioneer Bn, returned to Australia, 13 February 1917; 1365 Lance Corporal Kevin Vincent MULLARKEY, 20th Bn, returned to Australia, 22 February 1917; [900] 2nd Lt Nial Joseph MULLARKEY, 1st Bn, killed in action. |
| Date of death | 5 January 1964 |
| Place of burial | Woronora Cemetery |