Did they have make-up in the 1940s?
Of course they had make-up in the 1940's! Red lipstick powder foundation and mascara were big! A satin faced look was popular. Everything was a simple easy dramatic look. The red lipstick made the look complete.
This is a 1940s movie makeup trick. Makeup wasn't as good then as it is now and lights were a lot hotter, so they had to do SOMETHING to keep them from having to completely redo the actors' makeup after every take. Modern makeup doesn't need this, and spraying hairspray on your face is bad for you. Some people very lightly mist their makeup with water, which WILL make it last longer.