Master Samuelson began training with Master Heintz in the early 1980s, earned his black belt in 1988, and was the Indianola branch instructor for the Eric Heintz Black Belt Academy. He was one of the founders of Two Rivers Martial Arts, and earned his 6th Dan in April 2008. He was the primary instructor for the Indianola Branch, was a former President, and former Vice-President of the TRMA Board of Directors.

Mr. Richard Miles began his Tae Kwon Do training in 1996 with Master Eric Heintz, earned his black belt with Two Rivers in 1999, and became one of the Central Campus Branch instructors. He enlisted in the Army after 9/11 and served in Iraq. After the Army, he resumed training with Two Rivers, earned his permanent 1st dan rank in 2006, and served as the Carlisle Branch instructor.