| 2024-12-07 | Midwestern tribe |
| 2021-12-19 | Chiwere speakers |
| 2021-08-23 | Native Americans originally of the Plains |
| 2021-01-26 | Some Siouan speakers |
| 2020-10-09 | Tribe that traditionally spoke Chiwere |
| 2019-07-09 | Plains tribe |
| 2017-10-18 | Some native Nebraskans |
| 2016-11-24 | First tribe encountered by Lewis and Clark |
| 2015-12-20 | Missouri River natives |
| 2015-12-18 | Tribe once along the Big Blue River |
| 2015-01-23 | Onetime dwellers along the Big Blue River |
| 2014-09-25 | Oklahoma tribe |
| 2014-04-26 | Eagle of Delight's tribe |
| 2013-09-14 | Winnebago relatives |
| 2013-04-07 | Some Siouans |
| 2013-01-26 | Platte River natives |
| 2010-01-26 | Oklahoma Indians |
| 2010-01-10 | Nebraska natives |
| 2008-12-26 | Missouri relatives |
| 2007-12-14 | Relatives of the Missouria |
| 2007-12-04 | Oklahoma Indians |
| 2006-05-05 | Relatives of the Missouria |
| 2006-04-09 | Plains tribe |
| 2006-03-04 | Plains natives |
| 2005-05-11 | Siouan speakers |
| 1999-09-26 | Siouan tribesmen |
| 1996-04-27 | Western tribe |
| 1994-06-09 | Indians whose name means "lovers of sexual pleasure" |
| 1993-12-03 | Sioux Indians |