| Regimental number | 956 |
| Place of birth | Reedsdale, Victoria |
| Religion | Church of England |
| Occupation | Clerk |
| Address | 'Dudley', Toward South, Murrumbeena, Victoria |
| Marital status | Single |
| Age at embarkation | 25.9 |
| Height | 5' 10.75" |
| Weight | 154 lbs |
| Next of kin | Brother, Edward Armfield, Rollands Hotel, West Melbourne, Victoria |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Driver |
| Unit name | 3rd Light Horse Field Ambulance, 2nd and 3rd Reinforcements |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A4 Pera on |
| Rank from Nominal Roll | Driver |
| Unit from Nominal Roll | 3rd Light Railway Operating Company |
| Fate | Returned to Australia |
| Discharge date | |
| Other details |
War service: Egypt, Gallipoli Commenced return to Australia for 12 months' change from Suez on board HT 'Argyllshire', 3 March 1916 (mitral regurgitation); discharged (medically unfit), Melbourne, 25 July 1916. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Date of death | |
| Place of burial | Springvale Cemetery, Melbourne, Victoria |
| Sources | NAA: B2455, ARMFIELD William Thomas |