Memory bank, October 29

Herbert Hoover, do you remember the day? A guard at the Stock Exchange did:
"They roared like a lot of lions and tigers. They hollered and screamed, they clawed at one another's collars. It was like a bunch of crazy men. Every once in a while, when Radio or Steel or Auburn would take another tumble, you'd see some poor devil collapse and fall to the floor."
Black Tuesday, October 29, 1929. As a non-TV watcher I had no idea until this week that Herbert and Lou Hoover's great-granddaughter Margaret is a political commentator.