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