When Jacqueline Bouvier married John F Kennedy in 1953, just about every detail of her ivory marriage gown was pored more than by journalists. But just one essential actuality was disregarded. The gown’s designer was not credited by name a person author referred to her as “a colored lady dressmaker”. That designer was Ann Lowe, the couturier who experienced also developed Olivia de Havilland’s flower-painted 1947 Oscars gown. (Lowe was uncredited on that occasion too, doing work on fee for the brand Chez Sonia.) Lowe’s work, including a 1941 silk marriage costume embroidered with 3D lilies, will be on display screen at the spring exhibition at the Metropolitan Museum of…