Sid Campbell of Oakland, California, is the founding president of the World Okinawan Shorin-Ryu Karate-Do & Kobudo Association, and helped introduce the art of karate to the Western world. Ranked as 9th dan, Campbell has taught over 15,000 students, helped award 800 black belts, and supervises over 48 schools around the world.
Greglon Yimm Lee is a practitioner of Jeet Kune Do, a promoter of civic functions, and a co-producer of martial arts instructional videotapes. Lee is an active member of the JKD world and resides in Berkeley, California.