"Nederland, Indexen van de Archieven, Primaire Archiefstukken (BS en DTB), 1600-2000," database,
FamilySearch (
https://familysearch.org/ark:/61903/1:1:QLR9-FPVR : 6 October 2017), Petrus Kriek and Susanna Hakkaart, Marriage 23 Aug 1821, Leiden, Zuid-Holland, Nederland; from database,
openarchives (https://www.openarch.nl : 2016); citing Leiden, archive , inventory number , record number 146; ; Nationaal Archief Rijksarchief Zuid-Holland.