--(BUSINESS WIRE)--WHAT: American Express (NYSE:AXP) provided a $250,000 grant to the National Trust for Historic Preservation to restore Boston's Historic Nantucket Lightship/LV-112. A key symbol of our nation’s maritime heritage, the Nantucket Lightship was known as the “Statue of Liberty of the Sea;” the last landmark seen by vessels departing the United States; and the first beacon seen by many immigrants entering U.S. waters when it was anchored near the dangerous Nantucket Shoals from 193