their house
... that local tradition in Lyndonville, New York, holds that Jackson Blood's family hauled all the cobblestones for their house down from Lake Ontario themselves?
... that local tradition in <a href="./Lyndonville,_New_York" id="mwC2I" rel="mw:WikiLink" title="Lyndonville, New York">Lyndonville, New York</a>, holds that Jackson Blood's family hauled all the <a href="./Cobblestone_architecture" id="mwC2M" rel="mw:WikiLink" title="Cobblestone architecture">cobblestones</a> for <b id="mwC2Q"><a href="./Jackson_Blood_Cobblestone_House" id="mwC2U" rel="mw:WikiLink" title="Jackson Blood Cobblestone House">their house</a></b> down from <a href="./Lake_Ontario" id="mwC2Y" rel="mw:WikiLink" title="Lake Ontario">Lake Ontario</a> themselves?