"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KWTV-TD5 : accessed 11 April 2018), Lyle Parr in household of Matt Parr, Rockton, Rockton Township, Winnebago, Illinois, United States; citing enumeration district (ED) 101-87, sheet 11A, line 26, family 313, 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 915.