The paternal relationship between William Vaughn and his daughter
Eunice Vaughn is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant BF.
The segmental (via DNA segment triangulation) and total DNA shared between BF and other confirmed descendants of
Jacob Vaughn/
Elizabeth Robins is consistent with the expected ranges for their respective relationships. Since BF descends from Jacob Vaughn/Elizabeth Robins through William Vaughn and his daughter Eunice Vaughn, the presence of significant shared DNA between BF and other known descendants of Jacob Vaughn/Elizabeth Robins validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Jacob Vaughn/Elizabeth Robins through William Vaughn to Eunice Vaughn, and ultimately to BF, confirming this direct ancestral connection through multiple generations.