Garrit Yonker, Sep 1847
Hannah [= Fannie] Yonker, Nov 1847
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MS9P-T4Z : accessed 21 August 2015), Hannah Yonker in household of Garrit Yonker, Crockery township, Ottawa, Michigan, United States; citing sheet 7A, family 139, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,738.