Edith Mansford Fitzgerald
... that Edith Mansford Fitzgerald invented the Fitzgerald Key, which at one time was used by 75% of the US schools teaching the hearing impaired?
... that <b id="mwBtw"><a href="./Edith_Mansford_Fitzgerald" id="mwBt0" rel="mw:WikiLink" title="Edith Mansford Fitzgerald">Edith Mansford Fitzgerald</a></b> invented the <i id="mwBt4">Fitzgerald Key</i>, which at one time was used by 75% of the US schools teaching the <a class="mw-redirect" href="./Hearing_impaired" id="mwBt8" rel="mw:WikiLink" title="Hearing impaired">hearing impaired</a>?