From the Meiji period to the early Showa period, families through successive generations ｗere recorded in the same family register, including all the brothers, sisters, spouses, their children and grandchildren of those families over about four generations.
明治から昭和の初めまでは、明治初期からの代々の家族が全て同じ戸籍に記され、4代くらいに渡って兄弟姉妹、配偶者、其々の子供、子孫ら家族全てが記されていた。