Siouan languages
Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east.
Kansa language
Kansa is a Dhegiha Siouan language, a broader category containing other languages such as Quapaw, Omaha, Ponca and Osage. This group of language falls under Mississippi Valley Siouan, which is grouped under the largest category of The Siouan Language Family.