I found this online regarding this pattern:
Quilt Notes: For pattern templates of PINE BURR, see 500 FULL SIZE PATCHWORK PATTERNS by Maggie Malone, Stirling Publishing, 1985. According to Barbara Brackman's ENCYCLOPEDIA OF PIECED QUILT PATTERNS, the design first appeared in print in the syndicated column by Nancy Page (Florence LaGanka Harris) which was published by many periodicals in the 1920's-1940's.
I quess I didn't think of this quilt as a pine burr. All of the quilts I have seen called pine burr were a single triangle with "feathered" edges. So I guess there are 2 blocks with the same name.