Basic Details Surname Jeffries Forenames Oliver Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Service number 9046 Primary Service As stated on memorial Unit (Primary - Stated) Suffolk Regiment Sub-unit (Primary - Stated) 11th Battalion Rank / Title (Primary - Stated) Private Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Suffolk Regiment Rank / Title (Primary - Our reference) Private Death and Burial details Country of death Not stated on memorial Town of death Not stated on memorial Country of burial Germany Town of burial Cologne Cemetery Southern Cemetery Year of death 1917 Month of death May Day of death 17 Manner of death as stated Killed in Action Manner of death reference Killed in Action