"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSFX-S15 : 6 March 2015), Ebeltje Fikkert in household of Herman Fikkert, Borough of Brooklyn, Election District 10 New York City Ward 8, Kings, New York, United States; citing sheet 10B, family 226, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,241,047.