JFK: Just returning to our own farm (Minnesota) from a neighbors, with my father, when my mother ran out and told us he had just been shot; it must have just been moments before she told us; we watched the coverage a little before we even had confirmation that it was fatal.

First man on the moon: watched at the home of old family friends.

Challenger: I got up from sleeping daytime and got to my nightshift job, at the old Pontiac Foundry, Pontiac MI.,to find everyone talking about it.

9/11; At work in Auburn Hills, MI., inspecting automotive connectors, with the radio on a local "oldies" station, when they cut in to say the first plane had hit; as someone already mentioned, there was some claim that it appeared to be a small plane, so a lot of us were thinking it was an accident until the second plane hit. First response, I guess just utter shock; after that, every emotion in the book.