William O. Douglas,
New York Halvey v. Halvey — Opinion of the Court
“ If there were no question as to the power of Florida to provide for the custody of this child in the manner in which the Florida decree of divorce did, I think New York would have to respect what Florida decreed, unless changed conditions affecting the welfare of the child called for a change in custodial care. New York could respond to such changed circumstances. The child's welfare must be the controlling consideration whenever a court which can actually lay hold of a child is appealed to on behalf of the child. ”
