Zelda Sayre Fitzgerald (1900-1948), born in Montgomery, Alabama, was an American novelist and the wife of writer F. Scott Fitzgerald. She was an icon of the 1920s—dubbed by her husband "the first American Flapper." After the success of his first novel, This Side of Paradise (1920), the Fitzgerald's became celebrities.
The name flapper refers to the fashion trend in the 1920's of women who wore their galoshes unfastened. The noise made when they walked sounded like their boots were flapping. This trend is resurfacing today with young women wearing their boots unfastened as a fashion statement.