Peter Bulthuis, Dec 1844 (head, married, Netherlands)
Annie Bulthuis, Sep 1848 (wife, married, Netherlands)
Jacob Bulthuis, Oct 1861 (son, single, Netherlands)
"United States Census, 1900," index and images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSMB-5RX : accessed 28 March 2015), Annie Bulthuis in household of Peter Bulthuis, Precinct 2 Grand Rapids city Ward 12, Kent, Michigan, United States; citing sheet 12B, family 240, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,240,723.