Kansas State Census Collection, 1855-1925Edit
Part of the 1925 enumeration for Jefferson Township, Chautauqua County is indexed by Ancestry.com as being within Chase Township, Falls County, KS. The Enumerator's certification for Chase Twp., Falls County is on image 40. Jefferson Township, Chautauqua County begins here. Evidence: a letter to T. E. Hess, of Jefferson Twp. regarding his enumeration is bound in with the enumeration. His household's enumeration was in Jefferson Township.