sentences:  Numerous families had intermarried by that time or had other personal ties.If freedmen left the tribes, they would become US citizens.In the late 20th century, the Cherokee Nation voted for restrictions on membership to only those descendants of people listed as "Cherokee by blood" on the Dawes Rolls of the early 20th century, a decision that excluded most Cherokee Freedmen (by that time this term referred to descendants of the original group).