The maternal relationship between Sarah Grace Roberts and her son
Henry Cornelius Magor is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant LM.
The segmental (via DNA segment triangulation) and total DNA shared between LM and other confirmed descendants of
Henry Roberts/
Philippa Mitchell is consistent with the expected ranges for their respective relationships. Since LM descends from Henry Roberts/Philippa Mitchell through Sarah Grace Roberts and her son Henry Cornelius Magor, the presence of significant shared DNA between LM and other known descendants of Henry Roberts/Philippa Mitchell validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple Henry Roberts/Philippa Mitchell through Sarah Grace Roberts to Henry Cornelius Magor, and ultimately to LM, confirming this direct ancestral connection through multiple generations.