Ponca people speak English.
Historically, they spoke the Omaha-Ponca language, which as of 2018 is only spoken by a few elders, but has a revitalization plan.
Standing Bear spoke Omaha-Ponca and English.
The Manhasset indians spoke the Munsee and Unami languages.
Algonquian!
Caddoan
Sourashtian
Sioux
english.
algonquon
english.
Algonqulan Or Algonkian
They spoke Caddoan
Iroquian and/or Ojibway