| Answer | Crossword Clue |
|---|---|
| OTOS | Siouans |
| OTOES | Siouans |
| OTOS | Siouans. |
| IOWAS | Siouans |
| OTOS | Okla. Siouans |
| OTOS | Some Siouans |
| IOWAS | Minn. Siouans |
| OTOES | Some Siouans |
| OSAGES | Some Siouans |
| OTOES | Platte River Siouans |
| OTOS | Siouans now living in Oklahoma. |
| DAKOTAINDIAN | One of a large tribe of Siouans |
