Manhattan of Lake Erie

Several years ago I was looking through some old drawings at the National Archives when I came upon a drawing of a strange lighthouse that was labeled "Cedar Point Ohio Front Range - 1864." Later still, I found photographs of this unusual design in the Toledo Blade newspaper in Toledo, Ohio. The story in the paper told of this building's use at Manhattan. I have been to Manhattan, New York, many times, but Manhattan, Ohio - that was a new one for me.