As a retainer of the Choshu clan, Nobuhiro SATO successively held important positions such as Okuramoto-motojime-yaku (supervisor of managers of the tribute) and Daikenshi-yaku (head of inspectors) and so on; he studied Naganuma-ryu school of the military science and taught Heiyoroku (short summary of military science) to Shoin YOSHIDA, a thinker of the end of the Edo period.
佐藤信寛は長州藩士として御蔵元本締役、大検使役等を歴任、長沼流兵学を修め、幕末期の思想家吉田松陰に兵要録を授けた。