van der Waal en tant qu·Äôentrâ©e de Knelia van der Waal, "Netherlands, Archival Indexes, Vital Records, 1600-2000"
"Nederland, Indexen van de Archieven, Primaire Archiefstukken (BS en DTB), 1600-2000," database,
FamilySearch (
https://familysearch.org/ark:/61903/1:1:QLDD-6CN3 : 23 August 2017), van der Waal in entry for Knelia van der Waal, Baptism 23 Apr 1758, Sleeuwijk (NB); from database,
openarchives (https://www.openarch.nl : 2016); citing Werkendam, archive 8127, inventory number 15-16, folio; ; Brabants Historisch Informatie Centrum.