Pieternella Zwakhals en tant qu·Äôentrâ©e de Neeltje Exalto, "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:QL4X-CSZB : 23 August 2017), Pieternella Zwakhals in entry for Neeltje Exalto, Birth 17 Feb 1830, Heukelum, Gelderland, Nederland; from database,
openarchives (https://www.openarch.nl : 2016); citing Heukelum, archive 0207, inventory number 33817, record number 5; ; Gelders Archief.