"Netherlands, Archival Indexes, Population Registers," database,
FamilySearch (
https://familysearch.org/ark:/61903/1:1:QGVL-93SP : 19 December 2017), Johannes Paulus Kriek, 13 Jan 1821; from " Netherlands, Archival Indexes, Public Records," database,
Coret Genealogie (www.genealogytoday.com : n.d.); citing Municipal Census, Leiden, Zuid-Holland, Nederland, citing OpenArchives, Netherlands.