Basic Details Surname O'Brien Forenames J J Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Service number 7321 Primary Service As stated on memorial Unit (Primary - Stated) South Lancashire Regt. Rank / Title (Primary - Stated) Private Our References Unit (Primary - Our reference) The Prince of Wales's Volunteers (South Lancashire Regiment) Rank / Title (Primary - Our reference) Private Death and Burial details Year of death 1920 Month of death May Day of death 28