Basic Details Surname Hartley Forenames DA J J Gender Male Information stated on memorial Alternative forename D'Arcy John Joseph War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Service (Primary - Stated) Army Unit (Primary - Stated) 7th DG Rank / Title (Primary - Stated) LT Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) 7th Dragoon Guards (Princess Royal`s) Rank / Title (Primary - Our reference) Lieutenant