The 1953 wedding of Jacqueline Bouvier and then-Sen. John F. Kennedy was so perfect it is still being talked about more than 65 years later. As recently as 2017, gossip website The List was still calling it “the most beautiful wedding ever.” It was a fairy tale worthy of the legendary couple who would preside over Camelot. But for Ann Lowe, who designed the bridal gown, it was a nightmare. First, the wedding dress was destroyed 10 days before the ceremony. Then the 24-year-old bride, who did not really like the gown in the first place, snubbed her. Asked who...