Basic Details Surname Allen Forenames Frederick 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) R.N. Unit (Primary - Stated) HMS Airos Rank / Title (Primary - Stated) 1st P.O. Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS Airos Rank / Title (Primary - Our reference) Petty Officer 1st Class