Tony Christian, 8th Dan Goju Ryu Karate-do
Forfills all the criteria you require. He is still teaching on a weekly basis. He began in Wado Ryu in 1965, though I don't know who his original teacher was, he later trained under Danny Conner and Shiamitsu. He was 'taken in' for a time by the style of ' Mushindo' and 'Nagaboshi Otomo'(!) it's leader. He began in Goju Kai, when it was introduced in 1970, training and teaching with Gary Spiers. Then in Okinawan Goju Ryu, following its arrival a few years later, with the Rousseau brothers and later the man he acknowleges as his Sensei, Teruo Chinen, 9th Dan (Head of Jundokan International). He is currantly the senior instructor and technical director of the British Karate Association.
Andy
If you believe in an ideal,you don't own it,it owns you.
-Raymond Chandler.