Johannes van Maaswinkel en tant qu·Äôentrâ©e de Leendert van Maaswinkel, "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:QLMN-X9GT : 22 August 2017), Johannes van Maaswinkel in entry for Leendert van Maaswinkel, Death 26 Apr 1882, Haarlem, Noord-Holland, Netherlands; from database,
openarchives (https://www.openarch.nl : 2016); citing Haarlem, inventory number , record number 365; ; Noord-Hollands Archief.