John Leamy
... that merchant John Leamy owned the first U.S. ship to enter the Río de la Plata?
... that merchant <b id="mwA0U"><a href="./John_Leamy_(merchant)" id="mwA0Y" rel="mw:WikiLink" title="John Leamy (merchant)">John Leamy</a></b> owned the first U.S. ship to enter the <a href="./Río_de_la_Plata" id="mwA0c" rel="mw:WikiLink" title="Río de la Plata">Río de la Plata</a>?