"Netherlands, Archival Indexes, Vital Records," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QL5X-W676 : 6 October 2017), Grietje Jans in entry for Berent Kaspers Telkamp and Jantje Friedriks Wagt, Marriage 06 Jan 1831, Noordbroek, Groningen, Nederland; from database, openarchives (https://www.openarch.nl : 2016); citing Noordbroek, archive , inventory number , record number 1; ; AlleGroningers. - Grietje Jans in entry for Berent Kaspers Telkamp and Jantje Friedriks Wagt, "Netherlands, Archival Indexes, Vital Records"