Basic Details Surname Cobb Forenames Thomas Humphrey 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) Royal Navy Unit (Primary - Stated) HMS Invincible Rank / Title (Primary - Stated) Sub-Lieutenant Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS Invincible Rank / Title (Primary - Our reference) Sub Lieutenant Death and Burial details Year of death 1916 Month of death May Day of death 31 Age at death 19 Manner of death as stated Killed in action at the Battle of Jutland Manner of death reference Killed in Action