"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XHMM-BBQ : accessed 7 December 2017), David W Barnhart in household of Blanch C Barnhart, Sugar Ridge, Clay, Indiana, United States; citing enumeration district (ED) ED 20, sheet 4A, line 31, family 77, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 581; FHL microfilm 2,340,316.