The maternal relationship between Geraldine Ann Springsteel Heizler and her DNA tested son GSGHH is confirmed by the direct inheritance path of autosomal DNA.
The segmental (via DNA segment triangulation) and total DNA shared between GSGHH and other confirmed descendants of
John Edwin Curran/
Margaret Elizabeth Tierney is consistent with the expected ranges for their respective relationships. Since GSGHH descends from John Edwin Curran/Margaret Elizabeth Tierney through Geraldine Ann Springsteel Heizler, the presence of significant shared DNA between GSGHH and other known descendants of John Edwin Curran/Margaret Elizabeth Tierney validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple John Edwin Curran/Margaret Elizabeth Tierney through Geraldine Ann Springsteel Heizler to GSGHH, confirming this direct ancestral connection through multiple generations.