Santee Sioux Indian Agency (Nebraska)

Indian Tribes Associated With This Agency
Santee Sioux, Flandreau Sioux, and Ponca

History
The Santee Sioux Agency, or at least the name, was established in 1866 when the Sioux which had been assigned to the Crow Creek Agency moved to a reservation in Nebraska.

Records
Many of the records of the Santee Sioux Agency have been incorporated into the records of the Winnebago Agency. The historical records of the Winnebago Agency are in the Central Plains Regional Archives of the National Archives and Records Administration (NARA) in Kansas City. The records of the Santee Sioux in that collection includecensus records, family records, birth and death records, a marriage register, and other administrative records, 1861-1947.