Basic Details Surname Armstrong Forenames Henry Wilkinson Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS Invincible Death and Burial details Town of death Battle of Jutland Year of death 1916 Month of death May Day of death 31 Age at death 18 Manner of death as stated Killed Manner of death reference Killed in Action