Nevertheless, it is a lovely photo of her and we always thought that the print on her dress was birds. However, have a close look! They are not birds but airplanes! She's literally wearing her patriotism! I have managed to even find a book called Wearing Propaganda: Textiles on the Home Front in Japan, Britain and the United States 1931-1945 so there must have been lots of different propaganda fabrics produced.
Wouldn't it be great if someone somewhere has some of that fabric!