We did have the Defoe Shipbuilding Company that produced a very limited number of destroyers for the Navy so we all talked each other into thinking that we were right behind the White House as a prime first strike bulls eye. We lived about 2 miles or so from this potential ground zero so there was more than a little angst albeit horribly misplaced.
Our little hacienda was built in the late 20s by a fairly wealthy family with a million kids. The basement had huge walk in safe. No kidding. it was 6 feet wide and 12 feet long and it had a thick metal door, carpeting and was soundproof so it became my music practice room. About now, way back then, it was made into our bomb shelter and fall out shelter.
My dad came home from work about 49 years ago to this day and quietly moved everything out of "my" room and stocked it up with bedding, food and water, flashlights and a new-fangled transistor radio that had the emergency bands clearly marked - I think 640 and 1240 on the dial.
About 10 days later he moved everything back. The doomsday clock reset with 7 minutes to go instead of 30 seconds. I got back to practicing my trumpet.