Biography of William R. Borst
William R. Borst, born on January 15, 1860, in Marquette County, Wisconsin, was a prominent rancher and businessman in South Dakota. Son of Daniel and Emma (Kelly) Borst, he moved to South Dakota in 1869. William engaged in freighting to the Black Hills and later established a successful cattle ranch. In 1903, he expanded into the hardware business in Pierre, where he resided from 1896. Active in the Republican Party, Borst was also a member of the Knights of Pythias and the Ancient Order of United Workmen. He married Matilda A. Mason in 1889, and they had three children: Olney H., Margaret, and Jessie.