↑
United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M68P-P3B : 4 April 2020), Isaac Lewis, Meriden, New Haven, Connecticut, United States; citing family 520, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
↑
United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MHRH-DSP : 18 March 2020), Isaac C Lewis, 1860. Meriden, New Haven, Connecticut, United States
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United States Census, 1870", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MN7J-T52 : 19 March 2020), I C Lewis, 1870. Meriden, New Haven, Connecticut, United States