Website: The Reformed Dutch Church, now known as the Old Dutch Church of Kingston, NY; Source of: Marriage Records (1660-1809); Baptism Records (1660-1809; Burial Records (1696-1881. The Kingston Reformed Dutch Church was the central repository for all records of marriages and baptism conducted by circuit-rider Domines throughout Ulster and Orange counties of NY; Sussex County, NJ, and parts of Pike County, PA, until local churches were built and staffed. This occurred between 1735 and 1745 depending on the area.
Archive.org: Hoes, Roswell Randall, editor. Baptismal and Marriage Registers of the Old Dutch Church of Kingston, Ulster County, New York. New York, New York: De Winne Press. 1891
Archive.org: Vosburgh, Royden Woodward, ed; Minisink Reformed Dutch Church Records, 1716-1830 (Minisink, N.Y.); Walpack Reformed Dutch Church (Walpack, N.J. : Township); Reformed Church at Machackemack (Orange County, N.Y.) 1992 reprint by Heritage Books. 
It may be possible to confirm family relationships with Elizabeth 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 Elizabeth: