| Regimental number | 1199 |
| Place of birth | Adelaide South Australia |
| Religion | Methodist |
| Occupation | Labourer |
| Address | Oakbank, South Australia |
| Marital status | Single |
| Age at embarkation | 20 |
| Next of kin | Father, Michael Size, Oakbank, South Australia |
| Enlistment date | 2 February 1915 |
| Rank on enlistment | Private |
| Unit name | 3rd Light Horse Regiment, 7th Reinforcement |
| AWM Embarkation Roll number | 10/8/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A61 Kanowna on 24 June 1915 |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 7th Mobile Veterinary Section |
| Fate | Returned to Australia 22 January 1917 |
| Family/military connections | Brother: 1200 Pte William Michael SIZE, 3rd Light Horse, returned to Australia, 15 May 1919. |
