Ok....I suppose it was a period of mourning for those who worshipped JFK. I was 6 at the time and had no idea who he was or anything. My only recollection was seeing a bit of the funeral on tv and thinking it was about someone important.
I had just turned three when JFK was killed - my earliest memory - very clear even now.
As a teen I couldn’t figure out why my dad didn’t like JFK (his womanizing primarily I think). I also could figure out why he hated FDR even more. (Now I do!)