Clerks for the investigation and development of Ezo included the chief commissioner of finance (kanjo bugyo) Hidemochi MATSUMOTO and the head of the accounting section (kanjo kumigashira) Sojiro TSUCHIYAMA.
また、蝦夷地の調査開発をすすめる事務方には、勘定奉行松本秀持、勘定組頭土山宗次郎などがいた。