Jeff Williams
... that American sprinter Jeff Williams won his first World Championship medal at the age of 29 under the guidance of women's Olympic medalist Barbara Ferrell?
... that American <a class="mw-redirect" href="./Sprint_running" id="mwGMw" rel="mw:WikiLink" title="Sprint running">sprinter</a> <b id="mwGM0"><a class="mw-redirect" href="./Jeff_Williams_(athlete)" id="mwGM4" rel="mw:WikiLink" title="Jeff Williams (athlete)">Jeff Williams</a></b> won his first <a class="mw-redirect" href="./IAAF_World_Championships_in_Athletics" id="mwGM8" rel="mw:WikiLink" title="IAAF World Championships in Athletics">World Championship</a> medal at the age of 29 under the guidance of women's <a class="mw-redirect" href="./Summer_Olympics" id="mwGNA" rel="mw:WikiLink" title="Summer Olympics">Olympic</a> medalist <a href="./Barbara_Ferrell" id="mwGNE" rel="mw:WikiLink" title="Barbara Ferrell">Barbara Ferrell</a>?