Grandmaster Gonzalez started training with Master Heintz in the mid 1980s. He earned his 8th Dan in December 2016. He is one of the primary instructors at the TRMA Hub and is a curret member and former President and Vice President of the TRMA Board of Directors. Grandmaster Gonzalez is the director of the annual Pil Sung tournament.

Grandmaster Deaton began training with Master Heintz in 1986. Grandmaster Deaton earned his 8th Dan in December 2016. He is currently one of the primary instructors at the TRMA Hub. He is a former President and Vice-President of the TRMA Board of Directors.

Master Williams began training with Master Heintz in 1987 and earned her 7th Dan in December 2016. She is one of the primary instructors at the TRMA Hub, and is a former President and former Secretary of the TRMA Board.

Master Siever began training with Master Heintz in the spring of 1993. He earned his 6th Dan in December of 2016. Master Siever is one of the primary instructors at the TRMA Hub as well a former President and a former Secretary of the TRMA Board.

Mr. Kinseth began training with Master Heintz in 1983 and has taught taekwondo at various branches and at the Hub. He has over 45 years experience in a variety of martial arts, with particular emphasis upon taekwondo, kumdo and jodo. He is the instructor for the Martial Spirit class that integrates a broad variety of martial arts.

Ms. Douglass began training in 2005 with Iowa Methodist Tae Kwon Do. Ms. Douglass earned her 3rd Dan in April 2015 through TRMA. She is one of the primary instructors at the TRMA Hub, and is a former Vice-President of the TRMA Board.

Mr. Hornback began training at Two Rivers Martial Arts in 2009 and is one of the primary instructors for the school's Black Belt Youth Group. Mr. Hornback is also the instructor of the school's Kobudo, Okinawan Weapons class and holds Black Belts in TaeKwonDo and Kobudo, Okinawan Weapons. Mr. Hornback is a past member of the TRMA Board of Directors.

Mr. Nelson started with Two Rivers Tae Kwon Do in August of 2010. He is currently a 3rd Dan Black Belt, and teaches at the TRMA Hub branch.

Ms. Hornback began training at Two Rivers Martial Arts in 2009. She is currently one of the primary instructors at the school's Carlisle location. Ms. Hornback is also an instructor for the school's Black Belt Youth Group and holds Black Belts in TaeKwonDo and Kobudo, Okinawan Weapons. She is a former Secretary and former Vice-President of the TRMA Board of Directors.

Mr. McDonald is a current member of the TRMA Board of Directors.

Master Netsch began his training with Two Rivers and earned his 6th Dan in December 2016. He teaches at the Indianola Branch and is a current member of the TRMA Board of Directors. He is also a former President and former Vice President of the TRMA Board of Directors.

Mrs. Lerch started training with TRMA in 2010. She enjoys the activity and stress relief that Tae Kwon Do provides, and likes seeing people challenge themselves with this art form. She is a current member of the TRMA Board of Directors.

Mr. Lerch started training with TRMA in 2010. He also trained in Northern Shaolin Kung Fu when he was a teenager. Mr. Lerch enjoys learning new techniques and passing on what he's learned to other people. He is a current member of the board, a former Vice President, and former President of the TRMA Board of Directors.