I was living in Tulsa, Oklahoma and teaching at Berryhill school, just west of town.
At just a bit after 1:00 I remember coming out of the school, and the superintendent was just coming into the building. He said..."Somebody just shot the president." That how I found out about it.
I then remember everything shutting down until after the funeral, and I remember watching Jack Ruby shooting Oswald on live tv, in the basement of the Dallas PD.
Other "iconic memories" are the tv pictures of the caisson carrying the coffin in the parade down Pennsylvania Avenue....and the drumers playing the funeral drum cadence.
I also remember John Jr. giving that snappy military salute!