According to the West Family DNA Project, Sarah married Thomas Ferguson in 1842. No other documentation has been forthcoming.
Sources
WEST Family DNA Project Claiborne West of Buckingham County, Virginia, born 1759
Descendents of Claiborne WEST, born 1759.This is the family represented by DNA sample W62.
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DNA Connections
It may be possible to confirm family relationships with Sarah by comparing test results with other carriers of her ancestors' 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 some percentage of DNA with Sarah: