| Tribe related to the Missouri | 29 |
| Tribe related to the Iowa and Missouri | 38 |
| Tribe met by Lewis and Clark in 1804 | 36 |
| Tribe headquartered in Red Rock, Oklahoma | 41 |
| Tribe encountered by Lewis and Clark | 36 |
| Tribe encountered by Lewis & Clark | 38 |
| Tribe allied with the Missouri, once | 36 |
| Tribe affiliated with the Missouria | 35 |
| Today he's a Sooner | 23 |
| Southern Sioux | 14 |
| Sooner State tribe member | 25 |
| Sioux offshoot | 14 |
| Siouan is his tongue | 20 |
| Relative of a Winnebago | 23 |
| Platte tribesman | 16 |
| Platte people | 13 |
| Pawnee's ally | 17 |
| Onetime tribe of the Winnebago nation | 37 |
| Old buffalo hunters of the Great Plains | 39 |
| Oklahoma tribesperson | 21 |
| Oklahoma tribesman (Var.) | 25 |
| Oklahoma tribal member | 22 |
| Oklahoma people | 15 |
| Oklahoma Indian (and a three-word description of this puzzle's theme) | 73 |
| Okla. tribesmen | 15 |
| Oglala's kin | 16 |
| Nebraska county on the Missouri | 31 |
| Nebraska county north of Pawnee | 31 |
| Nebraska City is its county seat | 32 |
| Neb. county | 11 |
| Native American of the Midwest | 30 |
| Missouri's cousin | 21 |
| Midwestern tribesman | 20 |
| Midwest tribesman | 17 |
| Member of a Siouan tribe | 24 |
| Little Thief, for one | 21 |
| Language from which "Nebraska" comes | 46 |
| Kin of the Winnebago | 20 |
| Kin of the Iowa and Missouri | 28 |
| Iowa kin | 8 |
| Indian related to the Missouri | 30 |
| Indian or Western county | 24 |
| Fur trading natives | 19 |
| First tribe encountered by Lewis and Clark | 42 |
| First Indian tribe met by Lewis and Clark | 41 |
| Cousin of a Winnebago | 21 |
| County in Nebraska | 18 |
| Cornhusker State tribe | 22 |
| Chief Whitehorse, for one | 25 |
| Certain Siouan speaker | 22 |
| Certain Native American | 23 |
| Amerind of Oklahoma | 19 |
| Ally of the Missouri, once | 26 |
| A Plains tribe | 14 |
| A member of a branch of the Siouan people | 41 |
| ___-Missouria (Indian tribe) | 28 |
| Nebraska natives | 16 |
| Siouans | 7 |
| Plains natives | 14 |
| Siouan tribesmen | 16 |
| Early Nebraskans | 16 |
| Platte River Siouans | 20 |
| Oklahoma tribesmen | 18 |
| Some Nebraskans | 15 |
| Relatives of the Missouria | 26 |
| Onetime members of the Winnebago Nation | 39 |
| Nebraskan Indians | 17 |
| Winnebago relatives | 19 |
| Some Oklahoma natives | 21 |
| Sioux Indians | 13 |
| Siouan-speaking Indians | 23 |
| Platte River natives | 20 |
| Plains Amerinds | 15 |
| Pawnees' associates | 23 |
| Onetime Pawnee neighbors | 24 |
| Old Platte River dwellers | 25 |
| Kin of the Missouri | 19 |
| Kin of Dakotas | 14 |
| Iowa relatives | 14 |
| Indians whose name means "lovers of sexual pleasure" | 62 |
| Indians of Okla. | 16 |
| Great Plains folk | 17 |
| Friends of Pawnees | 18 |
| Eagle of Delight's tribe | 28 |
| Certain native Oklahomans | 25 |
| Amerinds of Neb. | 16 |
| Amerindians | 11 |
| Mexican Indians | 15 |
| Mexican language or people | 26 |
| Mexican language | 16 |
| Fall, to Ferdinand | 18 |
| Fall, in Spain | 14 |
| Fall months in Madrid | 22 |
| Fall for a señorita | 22 |
| Autumn, in Avila | 16 |
| "Lawrence of Arabia" star | 35 |
| "Goodbye, Mr. Chips" star Peter | 41 |
| 'Becket' actor | 22 |
| Peter of "Lawrence of Arabia" | 39 |
| "The Lion in WINTER" star | 35 |