"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MMKJ-ZWG : accessed 9 May 2018), Fred C Abbs, Eldorado town, Fond du Lac, Wisconsin, United States; citing enumeration district (ED) 20, sheet 5A, family 85, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,788.
"Wisconsin State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM39-FX4 : 10 March 2018), Fred Abbs, Eldorado, Fond du Lac, Wisconsin; citing p. 206, line 86, State Historical Society, Madison; FHL microfilm 1,020,448.
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