The maternal relationship between Della May Simon and her daughter Velma Helen Boyer is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant JM.

The segmental (via DNA segment triangulation) and total DNA shared between JM and other confirmed descendants of John Schaffer Simon/Mary Anna Millheim is consistent with the expected ranges for their respective relationships. Since JM descends from John Schaffer Simon/Mary Anna Millheim through Della May Simon and her daughter Velma Helen Boyer, the presence of significant shared DNA between JM and other known descendants of John Schaffer Simon/Mary Anna Millheim validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple John Schaffer Simon/Mary Anna Millheim through Della May Simon to Velma Helen Boyer, and ultimately to JM, confirming this direct ancestral connection through multiple generations.