NAme: Margriet /ENNES/ Baptism record of the central Reformed Church at Machackemeck (Deerpark), Orange County New York, p. 116.
Margriet (Grietje) Ennes, b. 12 Jun 1748 (apparently an error; see NOTE below), at Minisink Valley-Sussex County, New Jersey, was bp. Jul 17, 1748. Baptism was recorded at the central Reformed Church at Machackemeck (Deerpark), Orange County New York, p. 116; sponsor was: Margriet Decker ;
alternate birth: Born June 28, 1748
Christening 17 JUL 1748 Minisink, Orange, New York
NOTE: Her exact date of birth is found in the Old Ennis Bible, written by his father William: "1748 June 28th is born my second daughter Margaret" 
Father: William Ennes
Mother: Elisabeth Quick
Margriet (Grietje) Ennes married Jacobus Hoornbeck on Dec. 18, 1766, .
↑ MRDC Baptism Record, p. 116: 1748 Jul 17; William Ennes ; Elisabth Quick ; Margriet ; Margriet Decker
↑ Find A Grave, database and images : accessed 30 July 2019, memorial page for William Ennes (10 Jan 1711–Mar 1804), Find A Grave: Memorial #87244280, citing Minisink-Westbrook Family Cemetery, Sussex County, New Jersey, USA ; Maintained by Yvonne Florance (contributor 47639743) .
It may be possible to confirm family relationships with Margriet 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 Margriet: