The International Quilt Study and Museum at University of Nebraska – Lincoln has a collection of quilt photos from their past exhibits. They also have photos online of their quilts that are separated into time periods. The next best thing to actually having been there!
Photo is the Museum’s.
This site lists the exhibits, having photos and info about the work each: http://www.quiltstudy.org/exhibitions/pastexhibitions/
To view the past exhibitions online, go to: http://www.quiltstudy.org/exhibitions/online_exhibitions/
Here is where you can search the collections: http://www.quiltstudy.org/collections/search.html