"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM6P-PNQ : accessed 28 April 2019), Bernard H Alt, Van Buren Township, (south half), Putnam, Ohio, United States; citing enumeration district (ED) 77, sheet 7B, family 145, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,316.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLN8-3VK : accessed 28 April 2019), Bernard H Alt, Van Buren, Putnam, Ohio, United States; citing enumeration district (ED) ED 88, sheet 9B, family 204, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1226; FHL microfilm 1,375,239.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MDPN-4L2 : accessed 28 April 2019), Bernard H Alt, Van Buren, Putnam, Ohio, United States; citing ED 120, sheet 2A, line 43, family 39, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 1429; FHL microfilm 1,821,429.
See also:
"Ohio, County Births, 1841-2003," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X6XC-573 : 9 March 2018), B. H. Alt in entry for Claude C. Alt, 06 Nov 1897; citing Birth, Van Buren, Putnam, Ohio, United States, county courthouses, Ohio; FHL microfilm 915,768.
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