| Regimental number | 787 |
| Place of birth | Sydney New South Wales |
| Religion | Presbyterian |
| Occupation | Assayer |
| Address | Wolfram, Queensland |
| Marital status | Single |
| Age at embarkation | 25 |
| Next of kin | Father, Alexander Riddel, Almaden, Queensland |
| Enlistment date | 9 January 1915 |
| Rank on enlistment | Private |
| Unit name | 11th Light Horse Regiment, 1st Reinforcement |
| AWM Embarkation Roll number | 10/16/2 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A7 Medic on 2 June 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 2nd Light Horse Regiment |
| Fate | Returned to Australia 20 January 1916 |
