Chief Standing Bear of the Ponca Indians - Landmark 1879 trial of this Indian leader declared Indians to be "persons within the meaning of the law" for the first time. net.unl.edu/~swi/guide/stbear.html
Two Ponca Indian Tribes are Reunited - Transcript of an extended interview with several Northern and Southern Poncas. net.unl.edu/~swi/pers/ponca.html