The proposed relationship of James Simpson Griggs as the father of Martin 'Albert' Griggs, David Oscar Griggs and Daries Oliver Griggs is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 3rd cousin, once removed relationship between KC (a descendant of the Martin 'Albert' Griggs ancestral line) and RD (a descendant of the David Oscar Griggs ancestral line) with a shared segment of 54.48 cM across 3 HIR segments.

It also confirms a distant cousin relationship between LG (a descendant of the Daries Oliver Griggs ancestral line) and KC (a descendant of the Martin 'Albert' Griggs ancestral line) with a shared segment of 45.15 cM across 3 HIR segments.

These matches are consistent with their placement within these shared ancestral branches.

Further support for shared ancestry within Martin 'Albert' Griggs, David Oscar Griggs and Daries Oliver Griggs is provided by an additional 2 DNA confirmed relationships among other tested descendants tracing back to these lines.

(*) details visible to users who are logged in and are part of the DNA tested descendants.