↑ "United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XQ1D-7PX : accessed 6 August 2017), Ruth E Grundman in household of Edward H Grundman, Monroe, Monroe, Michigan, United States; citing enumeration district (ED) ED 27, sheet 17A, line 10, family 391, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 1013; FHL microfilm 2,340,748.
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