His oldest son Ichiro MOTONO was Minister of Foreign Affairs (Japan), the second son Eikichiro MOTONO was the forth president of the Yomiuri Shimbun, the third son Toru MOTONO was a professor of Kyoto Imperial University and the forth son Seigo MOTONO was an architect and a professor of Kyoto Institute of Technology.
長男に外務大臣(日本)となる本野一郎、次男に4代目読売新聞社社長となる本野英吉郎、3男に京都帝国大学教授の本野亨、4男に建築家で京都工芸繊維大学教授を務めた本野精吾がいる。