Gertrude S. Burlingham
... that despite having a Ph.D. and being a foremost North American authority on the difficult mushroom genera Lactarius and Russula, Gertrude S. Burlingham only ever taught high school biology?
... that despite having a <a class="mw-redirect" href="./Ph.D." id="mwEhI" rel="mw:WikiLink" title="Ph.D.">Ph.D.</a> and being a foremost North American authority on the difficult <a href="./Mushroom" id="mwEhM" rel="mw:WikiLink" title="Mushroom">mushroom</a> genera <i id="mwEhQ"><a href="./Lactarius" id="mwEhU" rel="mw:WikiLink" title="Lactarius">Lactarius</a></i> and <i id="mwEhY"><a href="./Russula" id="mwEhc" rel="mw:WikiLink" title="Russula">Russula</a></i>, <b id="mwEhg"><a class="mw-redirect" href="./Gertrude_S._Burlingham" id="mwEhk" rel="mw:WikiLink" title="Gertrude S. Burlingham">Gertrude S. Burlingham</a></b> only ever taught high school <a href="./Biology" id="mwEho" rel="mw:WikiLink" title="Biology">biology</a>?