| Regimental number | 196 |
| Place of birth | Adelaide, South Australia |
| Other Names | Stanley Irwin |
| Religion | Church of England |
| Occupation | Clerk |
| Address | Lion Brewery, North Adelaide, South Australia |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, Frederick Arthur Chapman, Lion Brewery, North Adelaide, South Australia |
| Enlistment date | 14 October 1914 |
| Rank on enlistment | Lance Sergeant |
| Unit name | Veterinary Section 2 |
| AWM Embarkation Roll number | 27/27/1 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board Transport A30 Borda on 22 December 1914 |
| Rank from Nominal Roll | Staff Sergeant |
| Unit from Nominal Roll | Australian Army Veterinary Corps |
| Fate | Returned to Australia 8 November 1918 |