Waller-Joos-Stetzler
"United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X39D-PYY : accessed 31 Mar 2014), Benjamin F Clark in household of G Thomas Clark, Kansas, Woodford, Illinois, United States; citing enumeration district (ED) 0010, sheet 1B, family 27, NARA microfilm publication T626, roll 573.
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Title "United States Census, 1930," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/X39D-PYY : accessed 31 Mar 2014), Benjamin F Clark in household of G Thomas Clark, Kansas, Woodford, Illinois, United States; citing enumeration district (ED) 0010, sheet 1B, family 27, NARA microfilm publication T626, roll 573. Short Title Benjamin F Clark in household of G Thomas Clark, "United States Census, 1930" Source ID S761 Linked to (1) Clark, Benjamin Franklin