The Ponca (Páⁿka iyé: Páⁿka or Ppáⁿkka ) are a Native American tribe of the Dhegian branch of the Siouan-language group. There are two federally recognized Ponca tribes: the Ponca Tribe of Nebraska and the Ponca Tribe of Indians of Oklahoma. Their traditions and historical accounts suggest they originated as a tribe east of the Mississippi River in the Ohio River valley area and migrated west for game and as a result of Iroquois wars. Early history At firs… (More on Ponca)