It is a little muddled, but it was supposed to look an an old Jersey shore town with some history, but the resort squarely set in the 1940s... Hence the art deco dance hall, and the long-gone candy shop decorated with a Miss America theme...It was conceived to definitely not be late 19th century/early 20th century the way the Grand Floridian was supposed to be...
but yes some of the decor/artifacts were of an earlier era just to give it some history...
The Cake Bake shop's decor lends itself more to the the Grand Floridian style and aesthetic