- FamilySearch Fam
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 4 Jul 2016), entry for Willem Kellenaar, person ID K8NV-QTL.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 4 Jul 2016), entry for Willem Kellenaar, person ID K4FS-1G3.
» Les sources » Arbre généalogique M. Tolsma » Généalogie Online">
- FamilySearch Fam
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 4 Jul 2016), entry for Willem Kellenaar, person ID K8NV-QTL.
- FamilySearch Family Tree (http://www.familysearch.org) - "FamilySearch," database, \i FamilySearch\i0 - The Church of Jesus Christ of Latter-day Saints - accessed 4 Jul 2016), entry for Willem Kellenaar, person ID K4FS-1G3.
» Les sources » Arbre généalogique M. Tolsma » Généalogie Online">