Lammert Schaap en tant qu·Äôentrâ©e de Gerritje Schaap, "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:QLMP-KLV3 : 24 October 2019), Lammert Schaap in entry for Gerritje Schaap, Death 18 Oct 1893, Huizen, North Holland, Netherlands; from database,
openarchives (https://www.openarch.nl : 2016); citing Haarlem, record number 79; ; Noord-Hollands Archief.