1940s dresses are considered to be vintage dresses. You may buy them in order to look cool at a costume party or a swing dance. You may buy such clothes from different sellers. Some of them are listed below for your convenience.
Vintage clothing stores:
There are many locally established vintage clothing stores that may try to be a good resource in order to find 1940s dresses. In case you are unable to find such a store, you can walk into antique store and ask for similar type of clothes as well.
Estate and garage sales:
We often see a lot of sales in different local garages. It's a good option to check them out as you never know you might come across something incredibly useful.
Family and friends:
Another way of finding such vintage clothes is to ask your friends and family members. There is a good chance that they might be in possession of something from the earlier times, belonging to one of their grand parents.
1940s dresses are widely available over the internet. Different sellers try to sell their stuff in a number of different ways. Some of them put it up for auction while others ask for a fixed price for them. Never the less, there is a good chance that you will surely find what you are looking for if you give it a try over the internet.
Make your own dresses: As a last resort, you can make your own dresses as well.