Basic Details Surname Hallahan Forenames Michael 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) Navy (RN) Unit (Primary - Stated) Royal Navy Sub-unit (Primary - Stated) H.M.S. Orion Rank / Title (Primary - Stated) Petty Officer Our References Service (Primary - Our reference) Royal Navy Rank / Title (Primary - Our reference) Petty Officer Death and Burial details Country of death Belgium Town of death Zeebrugge Year of death 1918 Month of death April Day of death 23 Manner of death as stated Killed in action Manner of death reference Killed in Action