Seigo Yamaguchi Sensei
9th Dan Shihan, Aikikai

Seigo Yamaguchi Shihan

Yamaguchi Shihan with Gerhard Walter, uke

Seigo Yamaguchi Shihan

Kisshomaru Ueshiba, Aikido 2nd Doshu,  and Yamaguchi Sensei

Yamaguchi Sensei and Yasuno Sensei at Hombu Dojo, 1973

My Experience with Seigo Yamaguchi Sensei, by William Gleason

Seigo Yamaguchi: In memoriam

See also Yoshinobu Takeda Sensei, Yamaguchi Sensei's foremost student.