Sakujirō Yokoyama
Sakujirō Yokoyama was an early Kodokan leader, teacher, curriculum contributor, and co-author of an influential judo manual.
Kodokan
Saigō Shirō
Saigō Shirō (1866–1922) was an early Kodokan judoka associated with Yama Arashi whose documented career became intertwined with the fictional hero Sanshirō Sugata.