"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8MT-PK2 : 15 September 2017), Mike Altmann in household of Mike Altmann, Cincinnati, Hamilton, Ohio, United States; citing enumeration district ED 144, sheet 441B, NARA microfilm publication T9 (Washington, D.C.: National Archives and Records Administration, n.d.), FHL microfilm 1,255,026.
"Ohio, County Marriages, 1789-2016," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XZNT-6JL : 26 August 2019), Michael Altmann and Frances Bohnert, 24 Jul 1884; citing Marriage, Hamilton, Ohio, United States, p193, Franklin County Genealogical & Historical Society, Columbus; FHL microfilm.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM8Z-R15 : accessed 27 December 2020), Michael Altmann, Precinct C Cincinnati City Ward 13, Hamilton, Ohio, United States; citing enumeration district (ED) 107, sheet 16B, family 378, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,276.
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