| Regimental number | 5663 |
| Place of birth | Northam Western Australia |
| Religion | Roman Catholic |
| Occupation | Farm hand |
| Address | Northam, Western Australia |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Father, Thomas Sermon, Grass Valley, Western Australia |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 28th Battalion, 15th Reinforcement |
| AWM Embarkation Roll number | 23/45/3 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A52 Surada on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 28th Battalion |
| Fate | Returned to Australia |
| Family/military connections | Brothers: 5431 Pte Selby William SERMON, 16th Bn, returned to Australia, 21 June 1919; 5658 Pte Harold Henry SERMON, 28th Bn, died of wounds, 10 June 1917. |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |