The Stevenson-Ives Library is one of the finest local history and genealogy research libraries in downstate Illinois. The Library contains more than 15,000 books and periodicals with a focus on McLean County and Central Illinois history and genealogy. The Library contains the collections of the McLean County Museum of History, the McLean County Genealogical Society, and the Letitia Green Stevenson Chapter of the National Society of Daughters of the American Revolution.