Dr. Manson began his martial arts career in 1971 in Chillicothe, Ohio.  He started studying Seiei Kan Karate under Master Don Madden.  In 1988 Dr. Manson had the good fortune to meet Master Merritt Stevens.  Master Stevens teachings made him realize the study of Karate alone would not answer all of his self-defense questions.  At this time Dr. Manson began the study of other martial arts and discovered the answers to many of his questions.  To this day he still considers himself a student of martial arts.  Dr. Manson has worked for fifteen years in the correctional system in Ohio.  He began as a correctional officer at the Correction Reception Center.  He then became a training officer at the Corrections Training Academy and presently is a training officer for the Division of Parole and Community Services.  In 1995 Dr. Manson along with Shihan Tim Jones wrote the Response to Sexual Violence program currently taught by the State of Ohio Department of Corrections.  He has taught countless correction officers, probation and parole officers as well as many members of various police and SWAT team members.   Dr. Manson is certified as a Firearms Instructor, Edged Weapons Instructor, Pepper Spray Instructor and  Field Tactics Instructor.  He is in demand for seminars around the country.  Dr. Manson has taken the skills he has learned and founded the Tokoshikan Bujutsu system.  In 1998 he was awarded the title of "Soke" (founder or head of a martial arts system) by the Black Belt Board of Tokoshi Martial Arts Federation.  Dr. Manson considers himself to be a student of martial arts as long as he lives.  Some of his achievements are as follows: