He was the first son of Emohachi MIDORIKAWA, a feudal retainer of the Niiya clan (Kita County) and a liegeman of Okuranoshoyu (junior assistant minister of the Ministry of Finance) Kato, and he called himself Atsuma.
喜多郡新谷藩士・加藤大蔵少輔家来・碧川衛門八の長子で篤眞（あつま）と称す。