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).
Jisaburo Ohwi Jisaburo Ohwi (大井 次三郎 , Ōi Jisaburō , 18 September 1905 – 22 February 1977) was Japanese botanist. He was a distinguished member of the Faculty of Science of Kyoto Imperial University. He is perhaps best known for his 1953 "Flora of Japan" (日本植物誌 , Nihon Shokubutsushi ) .