The maternal relationship between Anna Jonsdotter and her daughter
Annica Eriksdotter Gronlund is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant NAS.
The segmental (via DNA segment triangulation) and total DNA shared between NAS and other confirmed descendants of
Jonas Bertilsson Ofwerman/
Brita Olofsdotter is consistent with the expected ranges for their respective relationships. Since NAS descends from Jonas Bertilsson Ofwerman/Brita Olofsdotter through Anna Jonsdotter and her daughter Annica Eriksdotter Gronlund, the presence of significant shared DNA between NAS and other known descendants of Jonas Bertilsson Ofwerman/Brita Olofsdotter validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple Jonas Bertilsson Ofwerman/Brita Olofsdotter through Anna Jonsdotter to Annica Eriksdotter Gronlund, and ultimately to NAS, confirming this direct ancestral connection through multiple generations.