The paternal relationship between Adolf Jacob Kubitschek and his son
John Douglas Kubitschek is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant VN.
The segmental (via DNA segment triangulation) and total DNA shared between VN and other confirmed descendants of
Nicholas Forret/
Margaret L Fehlen is consistent with the expected ranges for their respective relationships. Since VN descends from Nicholas Forret/Margaret L Fehlen through Adolf Jacob Kubitschek and his son John Douglas Kubitschek, the presence of significant shared DNA between VN and other known descendants of Nicholas Forret/Margaret L Fehlen validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Nicholas Forret/Margaret L Fehlen through Adolf Jacob Kubitschek to John Douglas Kubitschek, and ultimately to VN, confirming this direct ancestral connection through multiple generations.