Tilley, John AMarshall, Amy K2018-03-222018-03-221998-02http://hdl.handle.net/10342/6630en-USBuoys--United StatesAids to navigation--United States--HistoryNavigation--United States--Safety measuresNavigation--United States--HistoryFrequently Close to the point of Peril: A History of Buoys and Tenders in the U.S. Coastal Waters 1789-1939Thesis