"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M4DV-B15 : 9 November 2014), George Durgin, Manitowoc Rapids, Manitowoc, Wisconsin, United States; citing family 510, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
