The proposed relationship of Gunnild Andresdotter Valen as the mother of Margit "Mary" Oldsdotter Aasland and TTCA is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between WLH (a descendant of the Margit "Mary" Oldsdotter Aasland ancestral line) and TC (a descendant of the TTCA ancestral line) with a shared segment of 97.52 cM across 6 HIR segments.

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