Basic Details Surname Duff Forenames William Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Sub-unit (Primary - Stated) 7th Battalion Rank / Title (Primary - Stated) Lieutenant Our References Service (Primary - Our reference) British Army Rank / Title (Primary - Our reference) Lieutenant Death and Burial details Country of death Turkey Country of burial Turkey Cemetery Twelve tree Copse Cemetery Year of death 1915 Month of death June Day of death 28 Age at death 23 Manner of death as stated Killed in Action Manner of death reference Killed in Action