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. It was the successor to the old St. Peters Agency. The headquarters was located about 13 miles below the mouth of the Niobrara River on the west side of the Missouri River.

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.

Letters received by the Office of Indian Affairs from the Santee Sioux Agency, 1871-1876, have been microfilmed by the National Archives as part of their Microcopy Number M234, Rolls 768-769. Copies are available at the National Archives and at the Family History Library and its family history centers (their microfilm roll numbers 1661498 thru 1661499).

Reports of Inspection of the Field Jurisdictions of the Office of Indian Affairs, 1873-1900 have been microfilmed by the National Archives as part of Microcopy Number M1070. The reports for Santee Sioux Agency, 1873-1875, and for the Santee and Flandreau Agency, 1880-1900, are on roll 47 of that Microcopy set. Copies are available at the National Archives, their Regional Archives, and at the Family History Library and its family history centers (their microfilm roll number 1617720).

Annual Indian Census Rolls were taken at this agency for 1885-1907, and 1909-1917. The rolls for 1885 throu 1898 also in clude the Ponca Indians and the Flandreau Sioux. These rolls have been microfilmed by the National Archives as part of their Microcopy Number M595, rolls 475 thru 477. Copies of these records are also available at the National Archives, their Regional Archives, and at the Family History Library and its family history centers (their microfilm numbers 581485-581487). These census rolls are also available online at Ancestry.com's subscription web site.