"Nederland, Indexen van de Archieven, Primaire Archiefstukken (BS en DTB), 1600-2000," database,
FamilySearch (
https://familysearch.org/ark:/61903/1:1:QLN3-61FX : 30 August 2017), Petronella van Loon, Death 17 Aug 1860, Asperen, Zuid-Holland, Nederland; from database,
openarchives (https://www.openarch.nl : 2016); citing Asperen, archive 0207, inventory number 33813, record number 16; ; Gelders Archief.