When blocks are shattered like that I find that repairing them is not worth it. (been there done that). Having said this- sometimes a quilt will have certain fabrics that have shattered while others are strong. So if the ratio of good to bad is high I might try to fix the shattered blocks.
I don't know anything about that block but it's interesting.
I have a passion for old quilts.
The other quilts look like feedsacks to me- popular from the 30s to the 50s