Grandmasters
Grandmaster Marshall E. Johnson: 1933 - 2006
- Opened Johnson's Ju Jitsu and Karate Club (later renamed as the NATA) in Willis, MI in 1959
- Established University of Michigan ROTC TKD Club 1972 to 1974
- Received WTF International Master Degree March 3, 1975
- Received WTF International Referee Cert. Sept. 11, 1977
- Received WTF Citation for Developing TKD as World Sport Nov. 27, 1985
- Helped Systemize the Art of Hoijeon Moosool 1986
- President North American Tae Kwon Do Association 1976 to 2006
- President United States Hoi Jeon Moo Sool Headquarters Jan. 8, 1988 to 2006
- Received 9th Dan in Taekwondo in 2005
Grandmaster Kim, Ho Jae
- National Chang Moo Kwan Taekwondo Central Instructor - 1960
- Established over 1000 Taekwondo training directors internationally - 1972-1986
- Director of Taekwondo Technical Arbitration at Korea University - 1973
- Chairman of Korean Taekwondo Association - 1976
- President of technical development for the Korean Taekwondo Association - 1976-1986
- Head Master of Chang Moo Kwan Taekwondo main branch - 1991
- Training Director of the Kukkiwon. Presided over 100 trainees per training session. 1981-2000
- Established over 8000 international Taekwondo master instructors worldwide. 1981-2000
- Current president of the World Taekwon Moodoo Federation
Grandmaster Myung, Jae Ok
- Founder of the Art of Hoi Jeon Moo Sool
- 10th Dan blackbelt in Hapkido
- Founded the World Hoi Jeon Moo Sool Federation
- Organized Hoi Jeon Moo Sool world games
- President of the World Hoi Jeon Moo Sool Federation
Headmaster Jamie Johnson
- Over 27 years Experience
- Current President of the North American Taekwondo Academy
- WTKMD Michigan President
- 2008 World Taekwondo Culture Expo Master Instructor
- USA team director for Hoi Jeon Moo Sool world games
- 7th Dan Taekwondo
- 7th Dan Hoi Jeon Moo Sool