"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KWHS-HBK : accessed 16 April 2018), Leonard H Davis, Cass Township, Fulton, Illinois, United States; citing enumeration district(ED) 29-18, sheet 5A, line 34, family 97, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 805.