Following their Americana Sampler class, The Forest Needle in Lake Forest, Illinois has released the stitch guide for this charming patriotic patchwork piece from Whimsy and Grace. I believe the stitch guide is by Candice Engelhard. A kit is available if you want to do a little one-stop shopping.
The shop doesn't have a website but you can contact them via their Facebook page. Many thanks to Debra P. for bringing this to my attention.