The paternal relationship between Joseph Stonecypher and his daughter Mary Jane Stonecipher is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant RDC.

The segmental (via DNA segment triangulation) and total DNA shared between RDC and other confirmed descendants of Heinrich J Steinseifer/Maria Elizabeth Hoffheins is consistent with the expected ranges for their respective relationships. Since RDC descends from Heinrich J Steinseifer/Maria Elizabeth Hoffheins through Joseph Stonecypher and his daughter Mary Jane Stonecipher, the presence of significant shared DNA between RDC and other known descendants of Heinrich J Steinseifer/Maria Elizabeth Hoffheins validates the generational links along this paternal line.

This supports the conclusion that DNA was passed from MRCA couple Heinrich J Steinseifer/Maria Elizabeth Hoffheins through Joseph Stonecypher to Mary Jane Stonecipher, and ultimately to RDC, confirming this direct ancestral connection through multiple generations.