Basic Details Surname Rydeard Forenames John 'Jack' Gender Male Information stated on memorial War First World War (1914-1918) Served or died Served Service number Company Sergeant Major 240039 Notes Formerly sergeant 607 5th Battalion Kings Own Royal Lancaster Regiment (Territorial Force) Primary Service As stated on memorial Service (Primary - Stated) British Army Unit (Primary - Stated) Labour Corps Rank / Title (Primary - Stated) Company Sergeant Major Our References Service (Primary - Our reference) British Army Unit (Primary - Our reference) Labour Corps Rank / Title (Primary - Our reference) Company Sergeant Major