Agricultural scientist, educator. The son of a samurai of the Sakura Clan. From 1857, he learned Dutch studies and English studies in Edo. In 1861 he took a job as an interpreter with the Ministry of Foreign Affairs, and in 1867 he went to the United States. After returning to Japan, he worked at the Tsukiji Hotel. In 1873, he attended the Vienna International Exposition and learned from the Austrian agricultural scientist Daniel Hooibrenk, and after he returned, he wrote Nogyo Sanji (Three Methods of Agriculture). In 1876 he founded Gakunosha agricultural school, and made an effort to popularize Western farming methods. TSUDA Umeko is his second daughter.