Had said I had not seen a picture of the back to tell if it had been QAYG'd. Searching around I found this site where the original now lives and it does show the back:
http://www.benningtonmuseum.org/stickle-quilt.html
and it seems not to have been QAYG'd, but hey, I like doing it. Do you suppose she would have had a machine? Ahhhh, but the backing shows no quilting as it would if it were layered, then quilted as a whole! Hmmmm, interesting!