Vera Curtis
... that soprano Vera Curtis was the first singer trained exclusively in the United States to perform with the Metropolitan Opera?
... that soprano <b id="mwKQ"><a href="./Vera_Curtis" id="mwKg" rel="mw:WikiLink" title="Vera Curtis">Vera Curtis</a></b> was the first singer trained exclusively in the United States to perform with the <a href="./Metropolitan_Opera" id="mwKw" rel="mw:WikiLink" title="Metropolitan Opera">Metropolitan Opera</a>?