Basic Details Surname Brain Forenames William Henry Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Notes Remembered on the Portsmouth Naval Memorial, Hampshire, England. Primary Service As stated on memorial Service (Primary - Stated) Navy (RN) Our References Service (Primary - Our reference) Royal Navy Unit (Primary - Our reference) HMS Indefatigable Rank / Title (Primary - Our reference) Boy First Class Death and Burial details Manner of death as stated Unknown