James Koering, Nov 1834
Cecilia Koering, Nov 1833
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MS95-DGT : accessed 14 February 2016), James Koering, Holland city Ward 3, Ottawa, Michigan, United States; citing sheet 16B, family 332, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,738.