I looked through other questions but couldn't see anything like what I'm looking for.
I checked out a collection of ghost stories every year from my elementary school library, so from about 1993-2000. The book was a paperback chapter book and I think had a dark blue cover. It included several true ghost stories and there were no illustrations.
I distinctly remember a chapter about the Bell Witch of Tennessee, and other chapters included ghost ships or pirates and maybe the Bermuda triangle? All stories were meant to be true; each chapter would include what had happened, like who had died or disappeared, and then any paranormal things after that, like people seeing the same ship after too many years, or something like that. I mainly remember it being American-centric.