The Amy Joy Donuts that was the closest to me was located at 7248 North Milwaukee Avenue in Niles, Illinois, just north of Touhy.
Believe it or not, Amy Joy had only three varieties of Prune donuts, very popular among the senior crowd. Its the size of their donuts that really stood out. They were about one and one-half times the size of a Dunkin Donut.
The trade name was registered in Illinois in 1957.