Basic Details Surname Hartley Forenames D'Arcy J. J. 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) British Army Unit (Primary - Stated) 7th D. G. Sub-unit (Primary - Stated) Not Stated on Memorial Rank / Title (Primary - Stated) Major Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) 7th Dragoon Guards (Princess Royal`s) Rank / Title (Primary - Our reference) Major