| Regimental number | 834 |
| Place of birth | Evandale, Tasmania |
| School | State School, Tasmania |
| Religion | Church of England |
| Occupation | Painter |
| Address | Perth, Tasmania |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Brother, Ronald Colgrave, Perth, Tasmania |
| Previous military service | Nil |
| Enlistment date | |
| Date of enlistment from Nominal Roll | |
| Rank on enlistment | Private |
| Unit name | 26th Battalion, C Company |
| AWM Embarkation Roll number | 23/43/1 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A60 Aeneas on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 26th Battalion |
| Recommendations (Medals and Awards) |
Medaille Militaire Work at Broodseinde Ridge on 4 October 1917. Recommendation date: |
| Other details from Roll of Honour Circular | William Henry Colgrave - name on file. |
| Fate | Killed in Action |
| Place of death or wounding | Villers-Bretonneux, France |
| Age at death | 26 |
| Age at death from cemetery records | 25 |
| Place of burial | Villers-Bretonneux Military Cemetery (Plot XIII, Row A, Grave No. 10), Fouilloy, France |
| Panel number, Roll of Honour, Australian War Memorial | 107 |
| Miscellaneous information from cemetery records | Parents: Henry and Mary COLGRAVE |