Around 1990, Grandmaster M. G. Lee started the Master Martial Arts Alliance, three Austin taekwondo schools under his direction. He personally ran the north school, known as the Master Martial Arts Academy and located at U. S. 183 and Balcones Woods. He had taught martial arts to both South Korean and U. S. troops during the Korean War. He was old but still strong and skillful, a hard taskmaster and much revered leader.
In 1993, Grandmaster Lee's uncle died, leaving him property in downtown Seoul. He closed the north school and returned to Korea to manage his estate. I believe the southwest school also closed about that time.