| Regimental number | 5458 |
| Place of birth | Richmond Victoria |
| Religion | Church of England |
| Occupation | Fruit grower |
| Address | Nyah, Victoria |
| Marital status | Single |
| Age at embarkation | 22 |
| Next of kin | Father, William H Willoughby, Nyah, Victoria |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 23rd Battalion, 14th Reinforcement |
| AWM Embarkation Roll number | 23/40/4 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A28 Miltiades on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 23rd Battalion |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | Alex spelt Alexander on Nominal Roll. |
| Age at death from cemetery records | 23 |
| Place of burial | Warlencourt British Cemetery (Plot IV, Row B, Grave No. 9), France |
| Panel number, Roll of Honour, Australian War Memorial | 100 |
| Miscellaneous information from cemetery records | Parents: William Henry and Sarah Frend WILLOUGHBY |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |