Related Clues:
- Plains people
- Crazy Horse, for one
- Siouan speakers
- Platte River Indians
- Native Oklahoman
- Platte Valley native
- Platte River tribe
- Word with North or South
- Cousins of the Winnebago
- Sioux speaker of Oklahoma
- Missouri River native
- Siouan people
- Sitting Bull was one
- Sooner State native
- U.S. territory until 1889