The maternal relationship between Ruth Elizabeth Crabtree and her son LTF is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant AF.
The segmental (via DNA segment triangulation) and total DNA shared between AF and other confirmed descendants of
James Fulton Hatcher/
Catherine Elizabeth Martin is consistent with the expected ranges for their respective relationships. Since AF descends from James Fulton Hatcher/Catherine Elizabeth Martin through Ruth Elizabeth Crabtree and her son LTF, the presence of significant shared DNA between AF and other known descendants of James Fulton Hatcher/Catherine Elizabeth Martin validates the generational links along this maternal line.
This supports the conclusion that DNA was passed from MRCA couple James Fulton Hatcher/Catherine Elizabeth Martin through Ruth Elizabeth Crabtree to LTF, and ultimately to AF, confirming this direct ancestral connection through multiple generations.