Kin Groups and Descent. Choctaw society was divided into two matrilineal exogamous moieties and six matrilineal clans. The remaining kinship unit was the locality group similar to the "house names" of the Chickasaw. Members of different clans lived together in the same town. But since Inheritance rules followed the female line, it is probable that residency was matrilocal. With the disruption of removal and increasing White contact, the clan system was undermined, and matrilineality was largely replaced by patrilineality.
Kinship Terminology. Traditional terminology followed the Crow system.