Yes, I will agree that Jackie did exude class.......however, from stories related to me by my mother many years ago her “class” was for public show. Outside the public eye she was a Class A witch (with a b).
My mother was a showroom model for the couture house of Hattie Carnegie while JFK was in the Senate and the early part of his Presidential campaign. The Bouvier family were regular customers and extremely abusive of all the help, including the models and seamstresses. My mother absolutely hated to be the one to model for her.