George Jonathan Danforth (November 21, 1875 – March 30, 1952) was a member of the South Dakota Senate.
Previously, he had been State's Attorney of Minnehaha County, South Dakota.
In 1930 and 1938, Danforth was a candidate in the Republican primary for the United States Senate.
He lost to incumbent William H. McMaster in 1930 and to John Chandler Gurney in 1938.
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