Locust Grove
...that Locust Grove, Samuel F. B. Morse's home near Poughkeepsie, was the first Hudson Valley estate to be designated a U.S. National Historic Landmark?
...that <b id="mwBMU"><a class="mw-redirect" href="./Locust_Grove_(Samuel_F._B._Morse_House)" id="mwBMY" rel="mw:WikiLink" title="Locust Grove (Samuel F. B. Morse House)">Locust Grove</a></b>, <a class="mw-redirect" href="./Samuel_F._B._Morse" id="mwBMc" rel="mw:WikiLink" title="Samuel F. B. Morse">Samuel F. B. Morse</a>'s home near <a class="mw-redirect" href="./Poughkeepsie_(city),_New_York" id="mwBMg" rel="mw:WikiLink" title="Poughkeepsie (city), New York">Poughkeepsie</a>, was the first <a href="./Hudson_Valley" id="mwBMk" rel="mw:WikiLink" title="Hudson Valley">Hudson Valley</a> <a class="mw-redirect" href="./Estate_(house)" id="mwBMo" rel="mw:WikiLink" title="Estate (house)">estate</a> to be designated a U.S. <a href="./National_Historic_Landmark" id="mwBMs" rel="mw:WikiLink" title="National Historic Landmark">National Historic Landmark</a>?