JTR Jujutsu Instructors Our Masters Master Don Master Andrae Master Wayne Master Don Danladi Whitten, aka “Master Don” the journey into martial arts began in 1982, at the age of seven. The school membership grew from 30 members to over 100 members in the years following by adding a women’s self-defense and children program. In 2016, he traveled to Seoul, in South Korea to learn about the history of his late teacher by visiting the dojos, meeting his family, and interviewing training partners.