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