from working with the historical society I can tell you that you do NOT want to make a quilt out of them now. Even if they were stored well and not in a cedar chest or cardboard box, the dyes/fabrics used back then can not handle A-being handled and B- being washed in today's water/detergents!
Any exposure now will change them rapidly. The more handling the more damage!
You could make them into an album! Stitch a very nice thick cotton muslin cover like a binder and hand stitch them all into it like a book! You could make a cover page that gives the history of them. Then store that in wrapped in acid free tissue paper in an archival box!
Remember, cotton is always alive..it is a living fiber. It breathes the air you breathe and absorbs oils, odors, etc..
if you frame them make sure you have a professional do it so the air is not cut of from them and they dry rot!
Many historians are now saying not to even quilt vintage tops! Especially if they are of great quality and have signatures!
See if you have local museum that can assist you in finding the best way to display if you must!