1915. Mansan, as Masato was called, was the sixth eldest child. His siblings were: brothers Sanshi, Goichi R., Wallace Yasuichi, Raymond Tokuhachi, sisters Kiyono, Doris Fujiko, Yoshino, Sueko Gladys, and Edith Tomeko. By 1920, the family was living on Windward Oahu where Sanjuro worked on a rice plantation. Growing up, Mansan attended Japanese school