The maternal relationship between Elisabeth Isaak and her son
David Koehn is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant CK.
The segmental (via DNA segment triangulation) and total DNA shared between CK and other confirmed descendants of
Maria Reimer is consistent with the expected ranges for their respective relationships. Since CK descends from Maria Reimer through Elisabeth Isaak and her son David Koehn, the presence of significant shared DNA between CK and other known descendants of Maria Reimer validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA Maria Reimer through Elisabeth Isaak to David Koehn, and ultimately to CK, confirming this direct ancestral connection through multiple generations.