Sanborn Public Library
Carnegie Grant Information
Town & County
Twelfth Census of the United States — 1900. p. 450.
Thirteenth Census of the United States — 1910. 1,174 population.
Sanborn is a town in O’Brien County, which was established on January 15, 1851. The county was named for William Smith O’Brien (1803-1864) an Irish patriot. The county seat is at Primghar. O’Brien county received two Carnegie grants for the towns of Sanborn and Sheldon.
(Source: Pratt, LeRoy G. “The Counties and Courthouses of Iowa.” Mason City, Ia; Klipto Printing & Office Supply Company, 1977, p. 242.)