The paternal relationship between Frederick A Stahl and his DNA tested daughter Helen Johanna Stahl is confirmed by the direct inheritance path of autosomal DNA.
The segmental (via DNA segment triangulation) and total DNA shared between Helen Johanna Stahl and other confirmed descendants of
Christian Ludwig Glander/
Anna Christina Wojahn is consistent with the expected ranges for their respective relationships. Since Helen Johanna Stahl descends from Christian Ludwig Glander/Anna Christina Wojahn through Frederick A Stahl, the presence of significant shared DNA between Helen Johanna Stahl and other known descendants of Christian Ludwig Glander/Anna Christina Wojahn validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Christian Ludwig Glander/Anna Christina Wojahn through Frederick A Stahl to Helen Johanna Stahl, confirming this direct ancestral connection through multiple generations.