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