The proposed relationship of Marie Dorothée Pelletier as the mother of JBS and Charles Provost dit Bonsaint is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between RD (a descendant of the Charles Provost dit Bonsaint ancestral line) and SCO (a descendant of the JBS ancestral line) with a shared segment of 55.98 cM across 3 HIR segments.

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