William Jackson
... that the little-known fortieth signer of the United States Constitution was the Convention's secretary, William Jackson ?
... that the little-known fortieth <a class="mw-redirect" href="./List_of_signatories_of_the_United_States_Constitution" id="mwAUc" rel="mw:WikiLink" title="List of signatories of the United States Constitution">signer</a> of the <a class="mw-redirect" href="./United_States_Constitution" id="mwAUg" rel="mw:WikiLink" title="United States Constitution">United States Constitution</a> was the Convention's <a href="./Secretary" id="mwAUk" rel="mw:WikiLink" title="Secretary">secretary</a>, <b id="mwAUo"><a href="./William_Jackson_(secretary)" id="mwAUs" rel="mw:WikiLink" title="William Jackson (secretary)">William Jackson</a></b> (<i id="mwAUw">pictured</i>)?