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