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