| Regimental number | 1844 |
| Date of birth | |
| Place of birth | Devonport, Tasmania |
| Religion | Church of England |
| Occupation | Carpenter |
| Address | Upper Rooke Street, Devonport West, Tasmania |
| Marital status | Single |
| Age at embarkation | 18 |
| Height | 5' 4" |
| Weight | 127 lbs |
| Next of kin | Mother, Mrs Annie Laycock, Upper Rooke Street, Devonport West, Tasmania |
| Previous military service | Served in the Senior Cadets; still serving at time of AIF enlistment. |
| Enlistment date | |
| Place of enlistment | Claremont, Tasmania |
| Rank on enlistment | Private |
| Unit name | 12th Battalion, 4th Reinforcement |
| AWM Embarkation Roll number | 23/29/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A8 Argyllshire on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 12th Battalion |
| Fate | Died of wounds |
| Date of death | |
| Place of burial | Cairo War Memorial Cemetery (Row D, Grave No. 137), Egypt |
| Panel number, Roll of Honour, Australian War Memorial | 66 |
| Family/military connections | Brother: 37 Driver Joseph Harold LAYCOCK, 12th Bn, returned to Australia, 23 September 1918. |
| Other details |
War service: Egypt, Gallipoli Wounded in action, Gallipoli, 28 August 1915 (shrapnel wound, back). Died of wounds, No 1 Australian General Hospital, Heliopolis, 16 October 1915. Medals: 1914-15 Star, British War Medal, Victory Medal |
| Sources | NAA: B2455, LAYCOCK William Gordon |