William Rankin
... that William Rankin is the only person to survive a parachuting descent through a thunderstorm cloud?
... that <b id="mwD1E"><a href="./William_Rankin" id="mwD1I" rel="mw:WikiLink" title="William Rankin">William Rankin</a></b> is the only person to survive a <a href="./Parachuting" id="mwD1M" rel="mw:WikiLink" title="Parachuting">parachuting</a> descent through a <a href="./Thunderstorm" id="mwD1Q" rel="mw:WikiLink" title="Thunderstorm">thunderstorm</a> <a class="mw-redirect" href="./Cumulonimbus" id="mwD1U" rel="mw:WikiLink" title="Cumulonimbus">cloud</a>?