"United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXHS-5S5 : 18 March 2020), James Ludon, 1860.
Son's marriage record names parents: "Michigan Marriages, 1868-1925," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:NQ71-8SQ : 9 November 2020), James Ludden in entry for Patrick Ludden and Victoria Polly Jack, 12 Nov 1887; citing Marriage, Ingalls, Menominee, Michigan, , Citing Secretary of State, Department of Vital Records, Lansing; FHL microfilm 4207658.
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