Atakapa

The Atakapa or Atacapa were an Indigenous people of the Southeastern Woodlands, who spoke the Atakapa language and historically lived along the Gulf of Mexico in what is now Texas and Louisiana.

extinct language of southern United States

The Opelousa (also Appalousa) were an Indigenous people of the Southeastern Woodlands in Louisiana. They lived near present-day Opelousas, Louisiana, west of the lower Mississippi River, in the 18th century. At various times, they allied with the neighboring Atakapa and Chitimacha peoples.

The Akokisa (also known as the Accokesaws, Arkokisa, or Orcoquiza) were an Indigenous tribe who lived on Galveston Bay and the lower Trinity and Sabine rivers in Texas, primarily in the present-day Greater Houston area. They were a band of the Atakapa Indians, closely related to the Atakapa of Lake Charles, Louisiana.

The Bidai, who referred to themselves as the Quasmigdo, were a tribe of American Indians from eastern Texas.