The proposed relationship of Maria Penner as the mother of
Johann Sawatzky and
Sara Sawatzky is supported by DNA evidence indicating shared ancestry within the family lines.
Specifically, DNA evidence confirms a 3rd cousin, once removed relationship between Robert James Wiebe (a descendant of the Sara Sawatzky ancestral line) and JS (a descendant of the Johann Sawatzky ancestral line) with 75.30 cM of shared DNA across 5 HIR segments.
This match is consistent with their placement within these shared ancestral branches.