Leslee,
You may want to contact the University of Nebraska at Lincoln. They have (as far as I know, but I may be entirely incorrect) the only university in the country with an entire department dedicated to quilts. The art form, design, history, etc. They also have a large display of antique quilts that are protected as well as the declaration of Independence. They have consultants that would (free of charge as of a couple years ago) inspect pictures of a quilt if it wasn't nearby and try to determine age and pattern. You may want to try there. It is very pretty.
Melissa