Sarah Miles Burford was born in 1688 in Virginia, and died in 1762 in Louisa, Virginia. She married Daniel Burford(born April 21, 1684, died February 12, 1756), and is the mother of Philip Burford(born 1723, died February 11, 1796) and four other Burford children. 
"Virginia Births and Christenings, 1853-1917," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:X5DL-53P : accessed 26 April 2016), Sarah Miles, 01 Mar 1877; citing Charles City Co., Virginia, reference yrs 1865-1896 p 90; FHL microfilm 31,011.
It may be possible to confirm family relationships with Sarah 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 Sarah: