The paternal relationship between William M Johnston and his son HEJC is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant BEC.
The segmental (via DNA segment triangulation) and total DNA shared between BEC and other confirmed descendants of
Amos Mount/
Nancy Kirby is consistent with the expected ranges for their respective relationships. Since BEC descends from Amos Mount/Nancy Kirby through William M Johnston and his son HEJC, the presence of significant shared DNA between BEC and other known descendants of Amos Mount/Nancy Kirby validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Amos Mount/Nancy Kirby through William M Johnston to HEJC, and ultimately to BEC, confirming this direct ancestral connection through multiple generations.