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