Basic Details Surname O'Neill Forenames Arthur Edward Bruce 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) 1st Life Guards Sub-unit (Primary - Stated) 2nd Battalion Rank / Title (Primary - Stated) Captain Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) 1st Life Guards Rank / Title (Primary - Our reference) Captain Death and Burial details Year of death 1914 Month of death November Day of death 6 Manner of death as stated Killed In Action Manner of death reference Killed in Action