For this reason in 1864 he decided to combine his expertise in kenjutsu and jūjutsu by formulating a new system of his own creation called Shindō Yōshin-ryū, meaning "new willow school."

Following the collapse of the Tokugawa shogunate Katsunosuke relocated to Ueno Village, north of Edo, eventually constructing a new dojo there.

Without a male heir, the Matsuoka family appointed Matakichi Inose as the temporary headmaster of Shindō Yōshin-ryū.

During this period of Inose's leadership, he awarded a Menkyo Kaiden to Tatsusaburo Nakayama, who taught at Shimozuma Middle School for approximately 20 years.

In addition to functioning as the 3rd headmaster of Shindō Yōshin-ryū, Tatsuo Matsuoka was a successful politician and an accomplished Judoka, eventually attaining the rank of 7th dan.

Shigeta Ohbata was a prominent budoka of the early 20th Century who fraternized with such notable budo personalities as Katsuta Hiratsuka/Yōshin-ryū, Masamizu Inazu/Yōshin Koryū, Jigoro Kano/Jūdō, Takeda Sokaku/Daitō-ryū, Yoshida Kōtarō/Daitō-ryū and Takayoshi Katayama/Yōshin-ryū.

At this time Shigeta also appointed a fully licensed instructor named Namishiro Matsuhiro to personally oversee his grandsons training.

This organization slowly grew in membership over the next twenty years and by the mid-1980s supported ten dojos and fifteen licensed instructors teaching in America, the Philippines, Japan and Europe.

At this meeting Takamura's vision for the future of the ryuha was discussed and a revised draft of the organizations kaiki (bylaws) completed.

Initially the organization was intended to be overseen by a board composed of these three individuals, each responsible for different geographical areas, but in 2003, Iso Takagi and David Maynard retired from active teaching due to health issues.

The Takamura-ha Shindō Yōshin Kai continues today under the direction of Tobin E. Threadgill with its headquarters dojo located in Evergreen, Colorado.

As a student of the teachings of Hōzōin-ryū, Kashima Shinden Jikishinkage-ryū, Hokushin Ittō-ryū, Totsuka-ha Yōshin Koryū and Tenjin Shin'yō-ryū, Matsuoka Katsunosuke consolidated many concepts of these various traditions into the foundational Shindō Yōshin-ryū.

Although Shindō Yōshin-ryū reflects the combining of elements of the Tenjin Shin'yō-ryū and the Totsuka-ha Yōshin Koryū, its waza demonstrates a softer, more weapon influenced execution of technique.

The founder of Wadō-ryū, Hironori Ohtsuka, studied Shindō Yōshin-ryū under a licensed instructor named Tatsusaburo Nakayama.