Good question...now you've good me wondering about previous owners, especially when I chance across the occasional physical evidence pressed between pages (amazing what people will eat while reading; also, don't people use handkerchiefs?).
I like "Hull Down," so I intend to keep a copy in my library. If, however, you find another in good condition, I will trade you so that you can be reunited with your original purchase.
I am on my second copy of "Maiden Voyage" nowadays. I wonder who has my original copy?
>And who will own them 100 years from now?
Well, if they're mine now, I'm taking them with me into the grave. That's the only place I'll have the peace I need to seriously get my research done. Either that, or I'll sell them on eBay.
Parks