I don't know if anyone else here both watched Buffy the Vampire Slayer back when it was on and is a World War II buff but if you are you might find this interesting.
A series called Wasp by an author who goes by the pen-name of Tanstaaflpair made up of, at present, two stories titled "Stingers" and "101st" in which Buffy gets given a new life in a parallel universe after her death at the end of season 5. It just so happens that her new life starts out in California in 1941.
Yes, there are some errors so if you are nitpicking you may not enjoy the stories but given a little suspension of disbelief and they are a fun read. I don't want to spoil anything but I will say that the author did get right the fact that the P-38 has a yoke instead of a stick. What could that mean for a Slayer?
Series page: Wasp by Tanstaafl
First story direct link: Stingers
Second story direct link: 101st
I have been meaning to mention this for awhile now but was never sure how to broach the subject before now.