Potter Stewart

“ The questions before us are whether failure to notify the petitioner of the pendency of the adoption proceedings deprived him of due process of law so as to render the adoption decree constitutionally invalid, and, if so, whether the subsequent hearing on the petitioner's motion to set aside the decree served to cure its constitutional invalidity.
In disposing of the first issue, there is no occasion to linger long. It is clear that failure to give the petitioner notice of the pending adoption proceedings violated the most rudimentary demands of due process of law. ”

“ Holly, 176 U.S. 398, 20 S.Ct. 410, 44 L.Ed. 52.' Id., at 314, 70 S.Ct. at 657. Questions frequently arise as to the adequacy of a particular form of notice in a particular case. See, e.g., Schroeder v. ”