Authorized by Congress in 1889, the Cherokee Commission was formed to negotiate the purchase of huge areas of land from the Cherokees, Ioways, Pawnees, Poncas, Tonakawas, Wichitas, Cheyennes, Arapahos, Sac and Fox, and other tribes in Indian Territory. Some humanitarian reformers argued that dissolving tribal holdings into individual private properties would help "civilize" the Indians and speed their assimilation into American culture. Whatever...