The paternal relationship between Gustav Adolph Radke and his daughter
Lydia Radke is confirmed by the direct inheritance path of autosomal DNA down to their DNA tested descendant Irene Brasseur.
The segmental (via DNA segment triangulation) and total DNA shared between Irene Brasseur and other confirmed descendants of
Johann Radke/
Anna Gartzke is consistent with the expected ranges for their respective relationships. Since Irene Brasseur descends from Johann Radke/Anna Gartzke through Gustav Adolph Radke and his daughter Lydia Radke, the presence of significant shared DNA between Irene Brasseur and other known descendants of Johann Radke/Anna Gartzke validates the generational links along this paternal line.
This supports the conclusion that DNA was passed from MRCA couple Johann Radke/Anna Gartzke through Gustav Adolph Radke to Lydia Radke, and ultimately to Irene Brasseur, confirming this direct ancestral connection through multiple generations.