Statistics for occurrence #1 of “Sisseton Indian” in entry united-states-of-america-south-dakota-state-of of Harper's Encyclopedia of United States History:

...the Indian outbreak at an end......Jan. 19, 1891 James H. Kyle elected United States Senator......Feb. 16, 1891 Australian ballot law enacted at session of......Jan. 6–March 7, 1891 Sisseton Indian reservation opened to settlers......April 15, 1892 Catholic Sioux congress opens at Cheyenne agency; 6,000 Sioux Indians present......July 3, 1892 C. H. Sheldon, Republican, elected governor....
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Sisseton Indian 2 2 0 0 0 user votes

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