| Regimental number | 556 |
| Religion | Roman Catholic |
| Occupation | Well Borer |
| Address | Millbrook, South Australia |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, John Thomas Marron, Millbrook, South Australia |
| Enlistment date | 18 October 1914 |
| Date of enlistment from Nominal Roll | 28 October 1914 |
| Rank on enlistment | Private |
| Unit name | 9th Light Horse Regiment, 21st Reinforcement |
| AWM Embarkation Roll number | 10/14/5 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board RMS Mooltan on 24 August 1916 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Mobile Veterinary Section |
| Fate | Returned to Australia 26 December 1918 |
| Miscellaneous details (Nominal Roll) | *given names are Francis Leonard |