The maternal relationship between Catherine Stammen and her daughter AMS is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant KJL.

The segmental (via DNA segment triangulation) and total DNA shared between KJL and other confirmed descendants of Johann Peter Martin Stammen/Magdalena Remmers is consistent with the expected ranges for their respective relationships. Since KJL descends from Johann Peter Martin Stammen/Magdalena Remmers through Catherine Stammen and her daughter AMS, the presence of significant shared DNA between KJL and other known descendants of Johann Peter Martin Stammen/Magdalena Remmers validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple Johann Peter Martin Stammen/Magdalena Remmers through Catherine Stammen to AMS, and ultimately to KJL, confirming this direct ancestral connection through multiple generations.