Basic Details Surname Helbert Forenames A Basil Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) RNAS Rank / Title (Primary - Stated) Sub Lieut Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) Royal Naval Air Service Rank / Title (Primary - Our reference) Sub Lieutenant Death and Burial details Town of death North Sea