Basic Details Surname Rook Forenames Wm. H Gender Male Information stated on memorial Alternative forename William H War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) H.M.T. Cotsmuir Rank / Title (Primary - Stated) Deckhand Our References Service (Primary - Our reference) Royal Navy Rank / Title (Primary - Our reference) Deckhand Death and Burial details Country of death Not Stated on Memorial Country of burial Not Stated on Memorial Cemetery Not Stated on Memorial Year of death 1917 Month of death February Day of death 2 Manner of death as stated Lost at sea either by mine or submarine Manner of death reference Killed in Action Personal Details Occupation Not Stated on Memorial