BK
I think you are right. On my quilt the large square is turned 45 degrees. Considering my Daddy's family is from Missouri (near Alba), this would make sense. I think this quilt was probably made by my Great-Grandmother (Sue Lester Parsons). We have only a few quilts that are all one color with coordinating binding. If you look real close at the picture, you can see where the large square is pieced into the surrounding white material.
Thank You