| Regimental number | 16919 |
| Place of birth | Melbourne, Victoria |
| Religion | Church of England |
| Occupation | Dental student |
| Address | Port Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 19 |
| Next of kin | Father, Harold Theodore Breidahl, 36 Rouse Street, Port Melbourne, Victoria |
| Previous military service | M R Rifles |
| Enlistment date | 6 March 1916 |
| Rank on enlistment | Private |
| Unit name | Australian Camel Field Ambulance |
| AWM Embarkation Roll number | 26/60/1 |
| 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 | Australian Army Medical Corps |
| Fate | Returned to Australia 4 March 1919 |