GM Bok Man Kim was very influential in helping to develop & propagate original TKD, especially in south east Asia. He rose to the all important military rank of Sgt-Major, which is the highest non-commissioned officer rank in the ROK Army, US Army as well, which the ROK Army is patterned after. Gen Choi sent for GM Kim & Woo Jae Lim when he was assigned to Malaysia as the 1st Korean Ambassador
And he is still teaching. http://www.integritymaa.com/kim.htm . I met him about two years ago and his speed with side, front snap roundhouse and hook kick was amazing.