Basic Details Surname Griffiths Forenames Clifford 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) HMS Sub. L55 Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS L55 Death and Burial details Year of death 1919 Month of death June Day of death 4 Manner of death as stated Lost on HMS Sub. L55 Manner of death reference Killed in Action