Basic Details Surname Johnson Forenames Harold Reuben Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Service (Primary - Stated) Army (British) Unit (Primary - Stated) London Regiment (First Surrey Rifles) Sub-unit (Primary - Stated) 142nd Trench Mortar Battery Rank / Title (Primary - Stated) Company Sergeant Major Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) 21st Battalion London Regiment (First Surrey Rifles) Rank / Title (Primary - Our reference) Company Sergeant Major Death and Burial details Year of death 1918 Month of death October Day of death 21 Manner of death as stated Unknown