Could you show us a picture of a wider area of the quilt?
I'm almost thinking that the quilt could have been made of alternating blocks.
The center 9-patch looks similar to something called "Weathervane" in Barbara Brackman's book, "Encyclopedia of Pieced Quilt Patterns.
There is a version of page 224 (Number 1780) and one on page 499 (Number 4033). They are pieced differently and Brackman credits different designers for the two of them.