The proposed relationship of Otto Gustav Radke as the father of MR and ER is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 1st cousin, once removed relationship between VK (a descendant of the ER ancestral line) and JR (a descendant of the MR ancestral line) with a shared segment of 698.03 cM across 24 HIR segments.

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

Further support for shared ancestry within MR and ER is provided by an additional 7 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.