Kearton Coates was a member of the Wisconsin State Assembly.
Coates was born on May 13, 1820 in Gunnerside, England. He moved to Platteville, Wisconsin in 1842 and to Linden, Wisconsin in 1844. Coates died on April 16, 1893 and is buried in Edmund, Wisconsin.
Coates became a member of the Assembly in 1875. Previously, Coates was Chairman and Assesor of Linden and Register of Deeds and Superintendent of the Poor of Iowa County, Wisconsin. In 1873, he was an unsuccessful candidate for county judge. He was a Republican.