Goshi Yamaguchi
Goshi Yamaguchi was born in Shinjing, Manchuria on September 28, 1942 as the third son of Kaiso (the Founder) Gogen Yamaguchi. In 1951, at the age of eight, he began practicing Karate-Do at Senzoku Dojo in Asakusa. He was promoted to Shodan (first level black belt) in 1957 and to Nidan (second level black belt) in 1959. In 1962 he became a Sandan (third level black belt) and an instructor.
He entered Nihon University in 1963, majoring in cinema studies in the Department of Arts. While he was a student, he had an opportunity to teach karate-do at an American branch dojo for a year. After he came back to Japan, he taught in various Goju-ryu dojo. He graduated from University in 1969, when he became a full time Shihan (Master) in the head dojo with a view to promote and develop Goju-ryu Karate-do.
He has visited and taught in more than 40 countries in the world thus far as an authorized instructor of Gojukai, All Japan Karate-do Federation, Tokyo Karate Federation, and as an international referee.
In 1990 he was appointed to president of All Japan Karate-Do Gojukai Association, International Karate-Do Gojukai Association, and Saiko Shihan (Grand Master) for both associations.
Reference
Yamaguchi, Goshi, (1993). Goju-Ryu Karate: A visual Guide to Kumite Techniques. Japan.