Answer:

pawnees

Answer	Crossword Clue
PAWNEES	Platte River Valley peoples
PAWNEES	"Dances With Wolves" natives
PAWNEES	Midwest Indians

PAWNEES	Onetime Sioux enemies
PAWNEES	Enemies of the Cheyenne.
PAWNEES	North American Indians.
PAWNEES	Indians holding small chess pieces?
PAWNEES	Nebraska natives
PAWNEES	Plains tribe
PAWNEES	Great Plains Indians
PAWNEES	Caddoan tribe