Shihan Robert B. MacEwen, Jr., is the U.S. Director of the  Nihon Goshin Aikido Association and director of the Aikido School of Self Defense in Middletown New York, holds a Fifth Degree Black Belt in Nihon Goshin Aikido, highest in the world.  He also holds a Fifth Degree Black Belt in Jujitsu and a First Degree Black Belt in Ninjitsu and Karate. He has been in the martial arts since 1972.  Shihan MacEwen studied directly under Richard A. Bowe and John Lehman. Today, Shihan MacEwen is one of the top-rated practitioners of Aikido in America. His explosive style has been recognized by Martial Arts publications and organizations all over the world. His dedicated approach to teaching and his outstanding skill have earned him a place in the National Martial Arts Hall of Fame four times. For the past few years, Shihan MacEwen has been working as a stunt choreographer and actor in the motionpicture industry.

http://www.aikido-macewen.com/index.htm