The sorting will work that way if you use pipes, but the headers for the pages won't appear in the Toups Clan category, so the list in the category would end up looking kind of weird to people, unless you explain what's going on on that category page.
Personally, what I'd recommend is leaving the category sorted normally (that is, alphabetically), since that's going to be a useful sort for everybody, not just people who have their hands on the book. (And you do include the page numbers that people are on in the book when you source them, right? Of course you do. Because you are a WikiTreer, and that makes you awesome.)