FamilySearch (https://familysearch.org/ark:/61903/1:1:QL5X-TV7C : 6 October 2017), Heijo Jans de Vries and Niessien Harms Greve, Marriage 11 Apr 1846, Termunten, Groningen, Nederland; from database, openarchives (https://www.openarch.nl : 2016); citing Termunten, archive , inventory number , record number 5; ; AlleGroningers. - Niessien Harms Greve, "Netherlands, Archival Indexes, Vital Records" » Quellen » Familienstammbaum familie Steenhuis » Genealogie Online"> FamilySearch (https://familysearch.org/ark:/61903/1:1:QL5X-TV7C : 6 October 2017), Heijo Jans de Vries and Niessien Harms Greve, Marriage 11 Apr 1846, Termunten, Groningen, Nederland; from database, openarchives (https://www.openarch.nl : 2016); citing Termunten, archive , inventory number , record number 5; ; AlleGroningers. - Niessien Harms Greve, "Netherlands, Archival Indexes, Vital Records" » Quellen » Familienstammbaum familie Steenhuis » Genealogie Online">
"Netherlands, Archival Indexes, Vital Records," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QL5X-TV7C : 6 October 2017), Heijo Jans de Vries and Niessien Harms Greve, Marriage 11 Apr 1846, Termunten, Groningen, Nederland; from database, openarchives (https://www.openarch.nl : 2016); citing Termunten, archive , inventory number , record number 5; ; AlleGroningers. - Niessien Harms Greve, "Netherlands, Archival Indexes, Vital Records"