Louise Hay
... that Louise Hay was the only woman to direct a math department at a major research university in her era?
... that <b id="mwB8k"><a href="./Louise_Hay_(mathematician)" id="mwB8o" rel="mw:WikiLink" title="Louise Hay (mathematician)">Louise Hay</a></b> was the only woman to direct a math department at <a class="mw-redirect" href="./University_of_Illinois_at_Chicago" id="mwB8s" rel="mw:WikiLink" title="University of Illinois at Chicago">a major research university</a> in her era?