Basic Details Surname Miles Forenames Harry William Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Notes Killed in the explosion and sinking of HMS Vanguard Primary Service As stated on memorial Unit (Primary - Stated) Royal Marine L. I. Rank / Title (Primary - Stated) Major Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) Royal Marine Light Infantry Rank / Title (Primary - Our reference) Major Death and Burial details Town of death HMS Vanguard Year of death 1917 Month of death July Day of death 9 Age at death 37 Manner of death as stated Explosion Manner of death reference Other