| Regimental number | 1369 |
| Place of birth | Geelong Victoria |
| Religion | Roman Catholic |
| Occupation | Salesman |
| Address | Geelong, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Brother, M J Mullen, Buckley, Victoria |
| Previous military service | 9th AGA |
| Enlistment date | 1 March 1918 |
| Rank on enlistment | Gunner |
| Unit name | Heavy Artillery Group 36, Reinforcement 18 |
| AWM Embarkation Roll number | 13/49/5 |
| Embarkation details | Unit embarked from Sydney, New South Wales, on board RMS Orontes on 5 June 1918 |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 2nd Siege Battery |
| Fate | Returned to Australia 22 July 1919 |