| Regimental number | 63945 |
| Date of birth | |
| Place of birth | Terowie, South Australia |
| School | Broken Hill South Public School and High School, New South Wales |
| Religion | Methodist |
| Occupation | Clerk |
| Address | Laura, South Australia |
| Marital status | Single |
| Age at embarkation | 18.10 |
| Height | 5' 10" |
| Weight | 151 lbs |
| Next of kin | Father, W G Cockshell, Laura, South Australia |
| Previous military service | Served in the 81st Infantry, Citizen Military Forces (Compulsory Military Training scheme). |
| Enlistment date | |
| Place of enlistment | Port Pirie, South Australia |
| Rank on enlistment | Private |
| Unit name | Army Medical Corps, General Reinforcements |
| AWM Embarkation Roll number | 26/99/2 |
| Embarkation details | Unit embarked from Fremantle, Western Australia, on board HMAT A36 Boonah on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 3rd Casualty Clearing Station |
| Fate | nig |
| Discharge date | |
| Other details |
War service: Western Front Contracted Spanish influenza; invalided to France; recovered. Commenced return to Australia on board HT 'Nestor', 1 November 1919; discharged (termination of period of enlistment), Adelaide, 31 January 1920. Medals: British War Medal, Victory Medal |
| Date of death | |
| Age at death | 65 |
| Place of burial | Centennial Park Cemetery, Adelaide, South Australia |
| Sources | NAA: B2455, COCKSHELL Leslie William |