The proposed relationship of Sarah Thompson Simon as the mother of Samuel Francis Gettz and Sarah Emma Gettz is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between JV (a descendant of the Sarah Emma Gettz ancestral line) and KR (a descendant of the Samuel Francis Gettz ancestral line) with a shared segment of 40.80 cM across 2 HIR segments.

This match is consistent with their placement within these shared ancestral branches.