Visabilty and currents in the East River almost impossible better off in the Hudson River only thing is state of New York owns it all can't bring anything up.
I've been looking into the Waddington story, as it's only about half an hour away from me: one variant of the said that Isle Royal(e) is near Waddington - is it? Because I've looked on several maps, and there's no Isle Royal(e) on any of them. There's Ogden, Murphy, Clark, and Dry Islands, and that's on surveys over 100 years old.
The only Isle Royal(e) that comes up in any search is (I believe) in Michigan.
And if this version of the story is true, and the treasure was found, would it be sunken now?