Basic Details Surname Cavendish Forenames H.J.F. Gender Male Information stated on memorial War First World War (1914-1918) Served or died Served Honours DSC; M.in D; Primary Service As stated on memorial Service (Primary - Stated) Royal Navy Rank / Title (Primary - Stated) Lieutenant Our References Service (Primary - Our reference) Royal Navy Rank / Title (Primary - Our reference) Lieutenant Death and Burial details Manner of death reference Not Applicable