The maternal relationship between Sarah Ellen Carpenter and her son Alvin Finch 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 Carpenter/Elizabeth Jane Higginbottom is consistent with the expected ranges for their respective relationships. Since JM descends from John Carpenter/Elizabeth Jane Higginbottom through Sarah Ellen Carpenter and her son Alvin Finch, the presence of significant shared DNA between JM and other known descendants of John Carpenter/Elizabeth Jane Higginbottom validates the generational links along this maternal line.

This supports the conclusion that DNA was passed from MRCA couple John Carpenter/Elizabeth Jane Higginbottom through Sarah Ellen Carpenter to Alvin Finch, and ultimately to JM, confirming this direct ancestral connection through multiple generations.