The paternal relationship between Johann James Gerbrandt and his son
Arthur Raymond Gerbrandt is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant RKG.
The segmental (via DNA segment triangulation) and total DNA shared between RKG and other confirmed descendants of
Gerhard Harms is consistent with the expected ranges for their respective relationships. Since RKG descends from Gerhard Harms through Johann James Gerbrandt and his son Arthur Raymond Gerbrandt, the presence of significant shared DNA between RKG and other known descendants of Gerhard Harms validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA Gerhard Harms through Johann James Gerbrandt to Arthur Raymond Gerbrandt, and ultimately to RKG, confirming this direct ancestral connection through multiple generations.