The maternal relationship between Amelia Shephard and her daughter
Grace Elizabeth Harris is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant JS.
The segmental (via DNA segment triangulation) and total DNA shared between JS and other confirmed descendants of
John Thomas Shephard/
Elizabeth Thompson is consistent with the expected ranges for their respective relationships. Since JS descends from John Thomas Shephard/Elizabeth Thompson through Amelia Shephard and her daughter Grace Elizabeth Harris, the presence of significant shared DNA between JS and other known descendants of John Thomas Shephard/Elizabeth Thompson validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple John Thomas Shephard/Elizabeth Thompson through Amelia Shephard to Grace Elizabeth Harris, and ultimately to JS, confirming this direct ancestral connection through multiple generations.