| Regimental number | 4731 |
| Place of birth | Adelaide, South Australia |
| School | Sturt Street Public School, Adelaide, South Australia |
| Religion | Roman Catholic |
| Occupation | Soldier |
| Address | Adelaide, South Australia |
| Marital status | Single |
| Age at embarkation | 21 |
| Next of kin | Mother, Mrs Alice Simmions, 226 Palmer Street, Sydney, New South Wales |
| Previous military service | Inst'l Staff; Served in the Cadets and Citizen Military Forces, and as a Staff Sergeant Major on the 'Instructional Staff'. |
| Enlistment date | |
| Rank on enlistment | Sergeant |
| Unit name | 32nd Battalion, 13th Reinforcement |
| AWM Embarkation Roll number | 23/49/3 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A30 Borda on |
| Rank from Nominal Roll | Sergeant |
| Unit from Nominal Roll | 43rd Battalion |
| Other details from Roll of Honour Circular | Received "Order of the Way" from the Divisional Commander commending Sergeant Simmons for carrying out a most daring reconaissance in the face of very heavy machine gun fire near Haut Allaines on 2 September 1918. |
| Fate | Killed in Action |
| Miscellaneous details (Nominal Roll) | *Given name William Laurence |
| Place of death or wounding | Bony, near St Quentin, France |
| Age at death | 23 |
| Age at death from cemetery records | 23 |
| Place of burial | Ste Emille Valley Cemetery (Plot II, Row B, Grave No. 13), Villers-Faucon, France |
| Panel number, Roll of Honour, Australian War Memorial | 137 |
| Miscellaneous information from cemetery records | Parents: Michael and Alice SIMMONS, 105 Gilbert Street, Adelaide, South Australia |
| Other details |
War service: Western Front Medals: British War Medal, Victory Medal |