Basic Details Surname Whalebone Forenames Frederick John Gender Male Information stated on memorial War Second World War (1939-1945) Served or died Died Honours D. S. M. Primary Service As stated on memorial Unit (Primary - Stated) H. M. Submarine Narwhal Rank / Title (Primary - Stated) Chief Petty Officer Our References Service (Primary - Our reference) Royal Navy Rank / Title (Primary - Our reference) Chief Petty Officer