"United States Census, 1860," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:MZB1-NS5 : accessed 4 October 2015), John P Foster in household of William Foster, , Wayne, Kentucky, United States; from "1860 U.S. Federal Census - Population," database, Fold3.com (http://www.fold3.com : n.d.); citing p. 130, household ID 841, NARA microfilm publication M653 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 803,399.
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MX44-ZK2 : accessed 4 October 2015), John C Foster in household of William Foster, Kentucky, United States; citing p. 2, family 10, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,002.
"Kentucky, Vital Record Indexes, 1911-1999," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKCM-VC46 : accessed 5 October 2015), John P Foster, 06 Apr 1913; citing Death, Pulaski, Kentucky, United States, Kentucky Department for Libraries and Archives, Frankfort.