| Regimental number | 1822 |
| Place of birth | Unley, South Australia |
| School | Unley Public School, South Australia |
| Religion | Church of England |
| Occupation | Boilermaker's assistant |
| Address | Blacklin Street, Unley, South Australia |
| Marital status | Single |
| Age at embarkation | 23 |
| Next of kin | Father, W H Lapthorne, Blacklin Street, Unley, South Australia |
| Enlistment date | |
| Rank on enlistment | Private |
| Unit name | 27th Battalion, 2nd Reinforcement |
| AWM Embarkation Roll number | 23/44/2 |
| Embarkation details | Unit embarked from Adelaide, South Australia, on board HMAT A61 Kanowna on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 27th Battalion |
| Fate | Died of wounds |
| Place of death or wounding | Gallipoli, Turkey |
| Age at death | 23.10 |
| Age at death from cemetery records | 23 |
| Place of burial | Gibraltar (North Point) Cemetery (Row C, Grave No. 3142), Europe |
| Panel number, Roll of Honour, Australian War Memorial | 110 |
| Miscellaneous information from cemetery records | Parents: William and Emma LAPTHORNE, 5 Macklin Street, Unley, South Australia |
| Family/military connections | Brothers: 3278 Corporal Thomas Frank LAPTHORNE, 48th Bn, killed in action, 18 September 1918; [620] Lt John Harold LAPTHORNE MC, 27th Bn, returned to Australia, 10 May 1919. |
| Other details |
War service: Egypt, Gallipoli Medals: 1914-15 Star, British War Medal, Victory Medal |