Smith Point Light
...that the Smith Point Light at the mouth of the Potomac River was preceded by four other lighthouses and three lightships at the same site?
...that the <b id="mwDI4"><a href="./Smith_Point_Light" id="mwDI8" rel="mw:WikiLink" title="Smith Point Light">Smith Point Light</a></b> at the mouth of the <a href="./Potomac_River" id="mwDJA" rel="mw:WikiLink" title="Potomac River">Potomac River</a> was preceded by four other <a href="./Lighthouse" id="mwDJE" rel="mw:WikiLink" title="Lighthouse">lighthouses</a> and three <a class="mw-redirect" href="./Lightvessel" id="mwDJI" rel="mw:WikiLink" title="Lightvessel">lightships</a> at the same site?