I think I found online one of those wonderful sites you don't expect and would love to find in person.  The Wade Hall Collection at the University of Kentucky has over 100 quilts and displays about 65 of them at any given time. 

Dr. Hall collected these quilts over thirty years, all from within 100 miles of his location.  Most of them are from the Ohio River Valley so the quilts reflect a regional and historic setting.

I have a few examples of these quilts:

        

"Circle of Heats" circa 1940                                                    "Grandmother's Flower Garden" circa 1930

    

"Strip Hexagon" circa 1930                                                                "Blue Basket" circa 1930

I really would love to spend an afternoon in this museum.  They have a good number of quilts online and each one can be clicked on for a bigger version for viewing. 

They also provide some details on the quilts and a history of the museum as well.

Even though I showed four quilts from about 1930 some of the quilts online date back to about 1850.

Here's a link to their site:  The Wade Hall Collection.

Great site.  Hope you visit.

Best,

Fiona