Just found this website that references "Designs by Janet Rae Nesbitt" who I think was the author of the Heart Crazies Pattern by Buggy Barn.. You might wish to contact her through the website and ask?
One Sister Buggy Barn Designer
Actually looks like she sells a kit of the pattern..
Log Cabin Hearts Kit
Well, and it also looks like she sells a pattern book that includes the pattern (per her website)
Crazy Good Life
Good Luck!