Barbara was born about 1700. She passed away about 1759.
"Virginia Births and Christenings, 1584-1917," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VRRH-QTT : 10 February 2018), Barbara in entry for Jacob Renny, 27 Aug 1741; citing OVERWHARTON PARISH,STAFFORD,VIRGINIA, reference ; FHL microfilm 0496620 IT 3.
It may be possible to confirm family relationships with Barbara 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 Barbara: