Sensei Todd Crabtree has studied Tomiki Aikido for most of his adult life under Master Mike Stanhope. He earned his fourth degree black belt (Yon Dan) in 2020. In 2010, he was asked by tenth degree black belt Don Madden, founder of the Akju Federation to found his own school. That same year, the Seishin Ryoku dojo was founded. In addition, Sensei Crabtree became a Usui Reiki Master in 2009. He also works as a professor at the University of Rio Grande as an aikido instructor. In 2014 he began teaching Seiei Kan Iaido and earned the rank of 3rd degree instructor in Iaido in 2021.