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Susan M. Strohm, Sah Dan, is the studio head at A Mountain Wind Martial Arts. Dr. Strohm started training in Tang Soo Do in 1992 with the Penn State Martial Arts Group and quickly became involved in studio and WTSDA activities. She produced the WTSDA World Championship Videos for 1994 and 1996, and from 2000-2012, as well as the WTSDA Hyung, One-Step and Ki Gong videos. She is currently the Chair of the WTSDA Video Committee.

In 2002, she authored the WTSDA Journal Volume Two: Study Guide Questions. In 2008, she received the WTSDA Hall of Fame Student of the Year award, and in 2001 the Region # 8 Roundtable Award.

She has a special interest in the history and philosophy of martial arts and has taught at Region # 22 Gup Clinics and Dan Camps. 

Dr. Strohm is on the faculty in the College of Communications at the Pennsylvania State University and lives in Lemont, PA with her husband, Dr. Patrick Parsons, an E Dan at Appalachia Tang Soo Do.




Don Aguillo, Sam Dan, began his martial arts training in 1997 and quickly discovered that he connected with the activities and concepts of practical self-defense, weapons training, sparring, and the warrior spirit ideology fostered in the studio. Mr. Aguillo tested for Cho Dan in 2001 and was promoted to E Dan in 2006. In 2013, while instructing and training at Paresh Martial Arts in San Francisco, CA, Mr. Aguillo tested for and was promoted to Sam Dan.

Mr. Aguillo maintains AMWMA as his home studio, where he has been one of the primary instructors for the youth class. He has also assisted Master Merrill with the Camp Cadet program and has been a member of the WTSDA World Championship Video Team, shooting video for the 2008, 2010 and 2012 Championship Videos.  

Mr. Aguillo graduated from Penn State University's Fine Arts Program and is a professional graphic artist.




John WhiteE Dan, began his training in 2000 at age eleven under Master Paul Mimidis at Mimidis Karate and continued his training under Master John Godwin at the Korean Martial Arts Institute. After moving to State College, Mr. White began training under Master Scott Merrill at A Mountain Wind Martial Arts. Mr. White tested for Cho Dan in 2005 and began helping with the instruction of both youth and adult classes. In 2007, Mr. White was promoted to E Dan. Along with his studio responsibilities, Mr. White has assisted Master Merrill in instructing a self-defense program at Camp Cadet, a youth summer camp run by Centre County Law Enforcement.

Mr. White is a recipient of the World Tang Soo Do Association Region # 8 Scholarship and is currently a J.D. Candidate at the University of Chicago Law School.





Earle Ryba, Cho Dan, followed his two youngest children into Tang Soo Do and began training in 1999 at the age of 65.  He was promoted to Cho Dan in 2012.  Dr. Ryba also trains in taiji quan in Guangzhou and Changsha, China. In addition, he is studying the use of qi gong techniques in Tang Soo Do training.

Dr. Ryba joined the Penn State faculty in 1960, and retired from the Department of Materials Science and Engineering in 2005.  He continues to teach courses in crystallography and x-ray diffraction, and conduct research on the crystal structures and crystal chemistry of alloy materials.






Master Scott E. Merrill is the studio founder for A Mountain Wind Martial Arts and studio head at Appalachia Tang Soo Do. Master Merrill has trained in Tang Soo Do for over 30 years; he currently holds the rank of Sah Dan Master. As a retired law enforcement officer after 38 years, (both civilian and military), he has been a weapons, firearms, and defensive tactics instructor and a SWAT member for over 25 years. Master Merrill is involved in training law enforcement officers throughout the commonwealth of Pennsylvania.

Master Merrill's roots in Tang Soo Do training stem from Appalachia Tang Soo Do, where he trained under Master Michael White. Other training influences include Master Michael Kaye, Mr. Bill Boswell, and Master John Beam.

Through his experiences in the field of law enforcement, Master Merrill helps expose many of his students to the real world aspects of martial training. As an instructor, he has expertise in the practical aspects of our techniques and their applications. He has been an instructor at Regional Gup Clinics, where he has taught defensive tactics, Hapkido, self-defense, and in conjunction with Master White, bong (long staff). Because of his specialty in the area of law enforcement, he has been an invited lecturer at the annual Region # 8 Dan Clinics for three years, with talks entitled "Street Awareness," "Training Law Enforcement Officials in the Dojang," and "Legal Aspects of Self Defense."



 Roy Donaldson, Sam Dan, began training at Penn State Martial Arts Group in 1988 under Master Michael Kaye. When achieving the rank of 1st Gup he was invited to train on Saturdays with Master Michael White at Appalachia Tang Soo Do. He graduated from Penn State in 1991 with a Degree in Administration of Justice and served in the United States Army.  He served in Long Range Surveillance for the 82nd Airborne Division from 1991-1995 and was honorably discharged. 

Mr. Donaldson returned to training in 2000 with Master Scott Homschek and earned the rank of Cho Dan in 2001, E Dan in 2003 and Sam Dan in 2006.  He also had the privilege of training under Master Kevin Robinson and Master Mike Molinaro. Mr. Donaldson is the Region # 8 2006 Roundtable Award recipient and served on Grandmaster Shin's security detail for over 10 years. He is currently a student of Master Scott Merrill and teaches classes for Appalachia Tang Soo Do in Philipsburg, PA.

Mr. Donaldson works as a Drug and Alcohol Counselor in Bellefonte, PA.