| Regimental number | 3171 |
| Date of birth | 23 February 1893 |
| Place of birth | Murwillumbah, New South Wales |
| School | Murwillumbah Public School |
| Religion | Roman Catholic |
| Occupation | Carter |
| Address | 71 Foster Street, Leichhardt, Sydney, New South Wales |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Mother, Mrs Hannah Cassidy, 71 Foster Street, Leichhardt, Sydney, New South Wales |
| Enlistment date | 8 January 1917 |
| Rank on enlistment | Private |
| Unit name | 1st Light Horse Regiment, 25th Reinforcement |
| AWM Embarkation Roll number | 10/6/5 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A42 Boorara on 10 May 1917 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 1st Light Horse Regiment |
| Fate | Returned to Australia 13 March 1919 |
| Family/military connections | Brother: Trooper Thomas E Cassidy, 7th Light Horse |
| Other details | Service in Egypt and palestine. Contracted malaria |
