 On March 26, 1846, a small sliver of the westernmost portion of Corydon bordering the Allegheny River was transferred to Warren County; the new town also retained the name Corydon, resulting in there being two adjacent but separate townships with the same name.The Warren County township of Corydon was flooded and dissolved in 1964.Charles F. Freeman (1832-1915), Wisconsin politician and businessman, was born in the township.