| Regimental number | 3866 |
| Place of birth | Fitzroy, Victoria |
| School | State School, Victoria |
| Religion | Roman Catholic |
| Occupation | Labourer |
| Address | Annie B Lock, 51 Leicester Street, Fitzroy, Melbourne, Victoria |
| Marital status | Single |
| Age at embarkation | 21 |
| Height | 5' 3.75" |
| Weight | 125 lbs |
| Next of kin | Brother, Clarence Holloway Lock, Young Street, Fitzroy, Melbourne, Victoria |
| Previous military service | Nil |
| Enlistment date | |
| Place of enlistment | Melbourne, Victoria |
| Rank on enlistment | Private |
| Unit name | 24th Battalion, 9th Reinforcement |
| AWM Embarkation Roll number | 23/41/3 |
| Embarkation details | Unit embarked from Melbourne, Victoria, on board HMAT A69 Warilda on |
| Rank from Nominal Roll | Private |
| Unit from Nominal Roll | 60th Battalion |
| Fate | Killed in Action |
| Age at death | 22 |
| Place of burial | No known grave |
| Commemoration details | V.C. Corner (Panel No 21), Australian Cemetery Memorial, Fromelles, France |
| Panel number, Roll of Honour, Australian War Memorial | 170 |
| Miscellaneous information from cemetery records | Parents: Charles and Lily LOCK; husband of Annie Briscoe LOCK, 376 George Street, Fitzroy, Victoria |
| Other details |
War service: Egypt, Western Front Admitted to Ship's Isolation , 29 February 1916; transferred to 1st Dermatological Hospital, Abbassia, 10 March 1916; discharged, 21 March 1916; total period of treatment fior venereal disease: 12 days. Taken on strength, 60th Bn, Duntroon Plateau, 20 April 1916. Embarked Alexandria to join the British Expeditionary Force, 18 June 1916; disembarked Marseilles, France, 29 June 1916. Reported Missing, 19 July 1916. Court of Enquiry, held in the field, 4 August 1917, pronounced fate as 'Killed in Action, 19 July 1916'. Note, Red Cross File No 162021: 'No trace Germany. Cert. by Capt. Mills. 10.10.19.' Statement, Red Cross File No 1590111, 4112 Pte J.A. FEIGAN, B Company, 60th Bn (patient, HM Queen Mary's Royal Naval Hospital, Southend, England), 27 July 1916: 'On July 19th, 1916, at Fleurbys (sic), Armentieres, I saw him killed by a Machine-gun in a charge in the middle of No Man's Land.' [It is not clear that this refers to 3866 C.W. LOCK; file bears notation 'Pte Leo, Charles'.] Medals: British War Medal, Victory Medal |
| Sources | NAA: B2455, LOCK Charles William
Red Cross Files Nos 162021 & 1590111 |