The Taguchi family linage goes back to the founder Uemon TAGUCHI who served as a jushi (junior samurai) for Shogun Yoshimune TOKUGAWA, but the family later fell on hard times and in 1841 their assets were bought by Issai SATO to be inherited by his eldest son Shinzaemon.
田口家は初代右衛門が将軍徳川吉宗の従士として使えて以来の家系で、のちに零落し、天保12年（1841年）に佐藤一斎が株を買い、一斎の長男である慎左衛門が継ぐ。