Census
"United States Census, 1840," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/XHRF-6Y7 : accessed 08 Jul 2014), Joseph Richardson, Jackson, Coshocton, Ohio; citing "1840 United States Federal Census," Ancestry.com; p. 289, NARA microfilm publication M704, roll 387, National Archives and Records Administration, Washington D.C.; FHL microfilm 0020162.