On this page, I've linked some books that may be helpful for finding information about the various ratifying conventions. Most of these books cover multiple conventions, looking at wider issues, rather than focusing on a single state. For many of you, the most important book will be Pauline Maier's Ratification: The People Debate the Constitution, an ebook you can access freely online.
For some of these books, however, online copies are not available, and you will need to order the book through OhioLINK. I strongly recommend that you order books sooner rather than later, as the upcoming Thanksgiving break will slow down book delivery.