The paternal relationship between Thomas CASSIDY and his daughter
Rebecca Gertrude CASSIDY is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant
Joan Patricia ROBERTS.
The segmental (via DNA segment triangulation) and total DNA shared between Joan Patricia ROBERTS and other confirmed descendants of
Stephen CASSIDY/
Catherine BRITTON is consistent with the expected ranges for their respective relationships. Since Joan Patricia ROBERTS descends from Stephen CASSIDY/Catherine BRITTON through Thomas CASSIDY and his daughter Rebecca Gertrude CASSIDY, the presence of significant shared DNA between Joan Patricia ROBERTS and other known descendants of Stephen CASSIDY/Catherine BRITTON validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Stephen CASSIDY/Catherine BRITTON through Thomas CASSIDY to Rebecca Gertrude CASSIDY, and ultimately to Joan Patricia ROBERTS, confirming this direct ancestral connection through multiple generations.