New York, Passenger Lists, 1820-1891," index and images, FamilySearch 'Jantien Wiltinge : accessed 26 Apr 2014), 065 - 2 Dec 1846-7 Apr 1847 > image 141 of 888; citing National Archives, Washington D.C.
"United States Census, 1850," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/MF8L-FJP : accessed 16 January 2015), Jantje Hekkius in household of Gerrit Jan Hekkius, Holland, Ottawa, Michigan, United States; citing family 5, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).