The Calculating Stars by Marie Robinette Kowal is a book I enjoyed tremendously, and I have started recommending it to a bunch of friends. It is set in the US in the 50s, just shortly after a meteorite drops into the sea next to Washington, kills millions, and starts what might be an extinction level event. Our protagonist is a woman with a PhD in maths, who flew planes in WW2 for WASP (officially never saw combat, but, y'know …), and whose husband is lead engineer for the NACA/IAC.