I have had cuts off at least three different bolts of Michael Miller black fabric. There was over two inches of shrinkage in width from each one.
I have also used Roc-Lon "pre-shrunk" muslin. That also had drastic shrinkage.
I have measured thousands (really!) of pieces of fabric before and after washing. Just about every piece has shrunk at least some - and usuallly only in one direction. Maybe five pieces did not shrink at all.