The proposed relationship of Bernard "barney" R Cain as the father of Estelle Veronica Cain and Bernard Barney R Cain is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 2nd cousin, once removed relationship between PKH (a descendant of the Bernard Barney R Cain ancestral line) and TN (a descendant of the Estelle Veronica Cain ancestral line) with a shared segment of 335.53 cM across 13 HIR segments.

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