Basic Details Surname McCallum Forenames Gilbert Gender Male Information stated on memorial War First World War (1914-1918) Served or died Served Notes PIRNMILL First World War (1914-1918) Primary Service As stated on memorial Service (Primary - Stated) British Army Unit (Primary - Stated) H. L. I. Sub-unit (Primary - Stated) Not Stated on Memorial Rank / Title (Primary - Stated) Not Stated on Memorial Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) The Highland Light Infantry