The proposed relationship of Andrea Ramírez as the mother of
José Fernando Del Río and
Emilia Del Rio Ramirez is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a distant cousin relationship between JDR (a descendant of the José Fernando Del Río ancestral line) and FS (a descendant of the Emilia Del Rio Ramirez ancestral line) with 148.59 cM of shared DNA across 8 HIR segments.
This match is consistent with their placement within these shared ancestral branches.