Michihaku ONOSAKI, the second son of the 13th family head Michiharu ONOSAKI, who was the 20th head of the family after Hidesato, introduced himself as Michihaku Onuki in Onuki-mura Village, Kuji District, Hitachi Province.
秀郷より20代目にあたる小野崎氏第13代当主小野崎通春の次男・通伯が常陸国久慈郡小貫村にあって小貫通伯を名乗った。