Basic Details Surname Hagan Forenames J J O Gender Male Information stated on memorial War First World War (1914-1918) Served or died Served Primary Service As stated on memorial Service (Primary - Stated) Army Unit (Primary - Stated) 29th Division Sub-unit (Primary - Stated) 87th Field Ambulance Rank / Title (Primary - Stated) Lt Col Our References Service (Primary - Our reference) British Army Rank / Title (Primary - Our reference) Lieutenant Colonel