Recognizing I consider Jan in VA an outstanding contributor and resource to members of this board, I am pleased to say when I saw the blocks I thought 1890 primarily because they strongly reminded me of a quilt I used (and wore out, alas!) as a child. My quilt was probably done by great-grandmother BUT I do have a TATW top of hers that I quilted and some of the fabrics are similar. She appliqued "1906" in very center square of her fabrics.
P.S. As I recall, yes some of the fabric was very thin it faded while I had it on the frame, but it was hard to needle.
P.P.S. Some of your blocks look like later seersucker shirt/dress fabrics