"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XQBC-L4V : accessed 13 July 2017), Opal Smith in household of Myra Smith, Summit, Jackson, Michigan, United States; citing enumeration district (ED) ED 53, sheet 5B, line 89, family 126, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 997; FHL microfilm 2,340,732.
"United States Census, 1940," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K4L5-7CS : accessed 13 July 2017), Opal A Smith in household of Tennis H Smith, Summit Township, Jackson, Michigan, United States; citing enumeration district (ED) 38-70, sheet 14B, line 52, family 292, 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 1769.
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