Basic Details Surname Oliver Forenames John Campbell Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) County of London Regiment Sub-unit (Primary - Stated) 20th Rank / Title (Primary - Stated) Private Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) 20th Battalion London Regiment (Blackheath and Woolwich) Rank / Title (Primary - Our reference) Private Death and Burial details Town of death Loos Year of death 1915 Month of death September Day of death 25 Age at death 25 Manner of death as stated Killed Manner of death reference Killed in Action