The maternal relationship between Wilhelmina Bartig and her daughter
Olga Otto is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant AF.
The segmental (via DNA segment triangulation) and total DNA shared between AF and other confirmed descendants of
Gottfried Giese/
Anna Maria Nast is consistent with the expected ranges for their respective relationships. Since AF descends from Gottfried Giese/Anna Maria Nast through Wilhelmina Bartig and her daughter Olga Otto, the presence of significant shared DNA between AF and other known descendants of Gottfried Giese/Anna Maria Nast validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple Gottfried Giese/Anna Maria Nast through Wilhelmina Bartig to Olga Otto, and ultimately to AF, confirming this direct ancestral connection through multiple generations.