Johan Petrus and Greitje had a large family including children Anatje, Catharine, Elizabeth, Maria, Philip, Stephanus 1742, Petrus 1748, Margaret, Helena 1759, Rebecca 1763, Sarah 1766, Rachel 1769, and Christina 1778. Their son Stephanus Fralick is also a patriot buried in the same cemetery as Johan Petrus.
Henry Z. Jones, Jr., The Palatine Families of New York 1710, p. 253
Mailed/printed copies of the Fraleigh Bible from the Rhinebeck Historical Society in Rhinebeck, New York, USA (sent by Mike Frazier to Emily Kusec-Ashcroft on March 27, 2017) Will add digital link when posted in their online archives.
It may be possible to confirm family relationships with Grietje by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Grietje: