Kanemaki Jisai and Sasaki Kojirō were both a what of respective fields of study?
Kanemaki Jisai Kanemaki Jisai (鐘巻 自斎 , c.1536 – 1615) was a master of the Chujō-ryū fighting style. He was a student of Toda Seigen and teacher to Itō Ittōsai (possibly also Sasaki Kojirō).
Kōjirō Matsumoto Kōjirō Matsumoto (松本 孝次郎 , Matsumoto Kōjirō ) is a Japanese educationist. He was a professor of Waseda University, and the provost of Tokyo Higher Normal School (today's University of Tsukuba). With educationists including Takashima (高島平三郎), he jointly founded the "Children Research" magazine in 1898, and in 1902 founded Children Research Society in Japan. In 1906 he was invited by Liangjiang Higher Normal School (today's Nanjing University) president Li Ruiqing and then came to China to be the school provost.