The proposed relationship of Catherine Harrold as the mother of
John Michael Uber and
John Harvey Uber, Jr. is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a distant cousin relationship between TC (a descendant of the John Harvey Uber, Jr. ancestral line) and JL (a descendant of the John Michael Uber ancestral line) with 21.29 cM of shared DNA across 1 HIR segments.
This match is consistent with their placement within these shared ancestral branches.