Statistics for occurrence #1 of “South Dakota” in entry yankton-indians of Harper's Encyclopedia of United States History:
...Dakota; 1,239 Yanktonai Sioux at Fort Peck agency, in Montana; a considerable number of Yanktonai Sioux at the Standing Rock agency, in North Dakota; and 1,728 Yankton Sioux at the Yankton agency, in South Dakota . For further details of this tribe, see Sioux, or Dakota, Indians....
|Max. Freq.||Min. Freq.|
|†||South Dakota (South Dakota, United States)||435||247||1||1||0 user votes|
† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.