Bob, there are so many lost lighthouses on the Chesapeake Bay and its tributaries, that you can't count them on all of your fingers and toes. There is a good book on them; "Forgotten Beacons, The Lost Lighthouses of the Chesapeake Bay" by Patrick Hornberger & Linda Turbyville, Eastwind Publishing, Annapolis, Maryland.

Plus, you can also go to our chapter site as Sweetpshirin pointed out and see a list of some of them.

Joyce