Basic Details Surname Mountain Forenames Harold Gender Male Information stated on memorial War First World War (1914-1918) Served or died Died Primary Service As stated on memorial Unit (Primary - Stated) KOYLI Rank / Title (Primary - Stated) Signaller Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The King's Own (Yorkshire Light Infantry) Rank / Title (Primary - Our reference) Signaller Death and Burial details Country of death France Year of death 1917 Month of death November Day of death 23 Age at death 27 Manner of death as stated KILLED IN ACTION Manner of death reference Killed in Action Personal Details Relationships C H & R M NEPHEW