it was ruled
... that in 1939 it was ruled that a child born in the United States to alien parents retains U.S. citizenship, even if the parents take the child back to their home country?
... that in 1939 <b id="mwCe4"><a href="./Perkins_v._Elg" id="mwCe8" rel="mw:WikiLink" title="Perkins v. Elg">it was ruled</a></b> that a child born in the United States to alien parents retains U.S. citizenship, even if the parents take the child back to their home country?