| Regimental number | 1898 |
| Place of birth | Warwick, Queensland |
| School | Toowoomba Grammar School, Queensland |
| Religion | Church of England |
| Occupation | Station mnager |
| Address | Warwick, Queensland |
| Marital status | Single |
| Age at embarkation | 24 |
| Next of kin | Father, J Longwill, Old Sandgate Road, Albion, Brisbane, Queensland |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 5th Light Horse Regiment, 13th Reinforcement |
| AWM Embarkation Roll number | 10/10/3 |
| Embarkation details | Unit embarked from Brisbane, Queensland, on board HMAT A55 Kyarra on |
| Rank from Nominal Roll | Gunner |
| Unit from Nominal Roll | 13th Field Artillery Brigade |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *Spelt William Matthew Longwill on NR |
| Place of death or wounding | Bellicourt, France |
| Age at death | 27 |
| Age at death from cemetery records | 27 |
| Place of burial | Bellicourt British Cemetery (Plot I, Row B, Grave No. 5), France |
| Panel number, Roll of Honour, Australian War Memorial | 18 |
| Miscellaneous information from cemetery records | Parents: John and Lucy LONGWILL, Old Sandgate Road, Albion, Queensland. Native of Warwick, Queensland |
Postal Address:
Po Box 7916
Canberra BC 2610, Australia
Street Address:
Northcott Drive,
Campbell, ACT 2600
