I will comment on the origional post who said she wanted to make a unique quilt.
First. I have never seen an authentic Civil War quilt made up of many sampler blocks. This to me is a 20 th century invention. I have seen medallion quilts of thar era but no sampler. So, if I were making a "Civil War" quilt, I would
Pick a block which has some meaning or inspiration to me or family heritage. Make it scrappy or controlled, scrappy is probably more authentic.