The organization of public constructions and the authorized carpenters in Shonai Ban have been studied. In the organization, the post called Ofushinbugyo was completed at 1640's, which continued to the end of Edo period. The other posts (Ometuke, Oninsokukata, Daikukata, Okairoonokata, etc) were completed from 1670's to 1680's. In place of Ondaikugashira, the post called Daikutoryo was established at that time. The carpenters inaugurated as Daikutoryo were lineal descendants who worked as carpenters in Shonai district before Edo period.
