Basic Details Surname Cooper Forenames Walter 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) West Yorkshire Regiment Sub-unit (Primary - Stated) 21st Bn Rank / Title (Primary - Stated) Corporal Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Prince of Wales's Own (West Yorkshire Regiment) Rank / Title (Primary - Our reference) Corporal Death and Burial details Country of death France Year of death 1918 Month of death February Day of death 13 Age at death 21 Manner of death as stated Killed in action Manner of death reference Killed in Action