Johannes Hieftje, Oct 1842 (head, married, Netherlands)
Getruda Hieftje, Apr 1846 (wife, married, Netherlands)
Cornelius Hieftje, Nov 1869 (son, single, Michigan)
Lizzie Hieftji, Jan 1880 (daughter, single, Michigan)
Willie Hieftji, Nov 1882 (son, single, Michigan)
Annie Hieftji, Jul 1886 (daughter, single, Michigan)
Martie Hieftji, Jul 1889 (son, single, Michigan)
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MS9R-FVF : 20 January 2015), Johannes Hieftje, Zeeland township Zeeland village, Ottawa, Michigan, United States; citing sheet 6B, family 128, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,738.