"Bernice Bobs Her Hair" was based on a real letter Fitzgerald wrote to his little sister, Annabel, in which he gave her advice on how to win over the guys. (Fitzgerald, F. Scott. The Short Stories of F. Scott Fitzgerald: A New Collection, ed. Matthew J. Bruccoli. New York: Scribner, 1989)
The cover of Fitzgerald's collection Flappers and Philosophers (1920) depicts a scene from "Bernice," which was included in the book. Check out the cover here.