Thanks, Hat Lady Mary! Doesn't this just define the word "adorable"?!
Mary Roback writes a wonderful blog with the delightful name FrouFrou 4 YouYou that is a huge compendium of hat history, especially Chicago hat history. Tons and tons of info!! You will be amazed, I assure you. She also sells on Etsy, hats, supplies, and the occasional trinket. And finally, you can follow her on Instagram #maryroback.