Charles Chauncey Burr
... that Charles Chauncey Burr was an abolitionist before the American Civil War but then became a Copperhead?
... that <b id="mwE6A"><a href="./Charles_Chauncey_Burr" id="mwE6E" rel="mw:WikiLink" title="Charles Chauncey Burr">Charles Chauncey Burr</a></b> was an <a href="./Abolitionism" id="mwE6I" rel="mw:WikiLink" title="Abolitionism">abolitionist</a> before the <a href="./American_Civil_War" id="mwE6M" rel="mw:WikiLink" title="American Civil War">American Civil War</a> but then became a <a class="mw-redirect" href="./Copperheads_(politics)" id="mwE6Q" rel="mw:WikiLink" title="Copperheads (politics)">Copperhead</a>?