Prince v. Massachusetts, 321 U.S. 158 (1944) Holding that the responsibility of caring for and nurturing a child resides with parents first, "whose primary function and freedom include preparation for obligations the state can neither supply nor hinder."
Troxel et vir. v. Granville, 530 U.S. 57 (2000) A grandparent's visitation order was held to be an unconstitutional infringement on a parent's fundamental right to make decisions concerning the care, custody, and control of her two daughters.