I would the National Quilt Museum,
http://www.quiltmuseum.org/visit_about.htm
You may have to cut and paste this address into your web search area on your computer. But this wonderful museum and it's staff are a wealth of information and encouragement.
I hope you find the answers and stories you seek.
I know some cases where they make quilts out of Tapia bark cloth.
Be sure to post again, when you get the scoop!
Just Jan