Basic Details Surname Finnis Forenames J F 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) Royal Navy Sub-unit (Primary - Stated) M55 Rank / Title (Primary - Stated) Sto 1st Cl Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) Submarine Service Rank / Title (Primary - Our reference) Stoker 1st Class Death and Burial details Age at death 28 Manner of death as stated Unknown