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 Derk van der Worp, person ID KFR7-3GY. 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 Derk van der Worp, person ID KFR7-3GY.