↑ "United States Census, 1870," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MZL7-T7S : accessed 08 Mar 2014), Isaac Frank in household of Margret Auld, Pennsylvania, United States; citing p. , family 131, NARA microfilm publication M593, FHL microfilm 000552792.
↑ "United States Census, 1880," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MFDJ-CFC : accessed 08 Mar 2014), Isaac Frank in household of Isaac Billig, Leadville, Lake, Colorado, United States; citing sheet 402D, family 2, NARA microfilm publication T9-0091
↑ "United States Census, 1900," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MS16-4QT : accessed 08 Mar 2014), Isaac W Frank, Precinct 5 Allegheny city Ward 5, Allegheny, Pennsylvania, United States; citing sheet , family 141, NARA microfilm publication T623, FHL microfilm 1241356.
Source Information:
Ancestry.com. 1910 United States Federal Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2006.
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