Ancestry.com. History of Mercer and Henderson Counties [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: History of Mercer and Henderson Counties : together with biographical matter, statistics, etc. gathered from matter furnished by the Mercer and Henderson County Historical Societies, interviews with old settlers, county, township and other records, and extracts from files of papers, pamphlets, and such other sources as have been available.. Chicago: H.H. Hill and Co., 1882.