Shizuo was seventh of eight children.
Oldest brother Kanae would follow in their father's footsteps and become a doctor.
Brothers Yasuzo (Michiyasu Inoue) and Kunio (Yanagida) would be adopted by other families and become authors as well.

Shizo would marry Aiko Inajiro, who would pass shortly after their marriage.
Shizuo would then go on to marry Hatsuko Nomura, the daughter of Viscount Yasushi Nomura.
Shizuo and Hatsuko would have 4 children, 3 daughters and one son, Iwaki Matsuoka (1919-1995), who would go to become a professor at Hosei University in Business Administration.
Shizuo was seventh of eight children. Oldest brother Kanae would follow in their father's footsteps and become a doctor. Brothers Yasuzo (Michiyasu Inoue) and Kunio (Yanagida) would be adopted by other families and become authors as well. 
Shizo would marry Aiko Inajiro, who would pass shortly after their marriage. Shizuo would then go on to marry Hatsuko Nomura, the daughter of Viscount Yasushi Nomura. Shizuo and Hatsuko would have 4 children, 3 daughters and one son, Iwaki Matsuoka (1919-1995), who would go to become a professor at Hosei University in Business Administration.
Shizuo Matsuoka