Basic Details Surname Callaby Forenames George Bertie 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) ROYAL ENGINEERS. Rank / Title (Primary - Stated) SAPPER. Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) Royal Engineers Rank / Title (Primary - Our reference) Sapper