Mary Carlisle is still alive. She was one of the WAMPAS baby stars and is the last remaining one. Reading up on the WAMPAS baby stars is the kind of thing I actually do so, if you're not as weird as I am and are unfamiliar with them, simply go here.
Anyway, she's 99 and will turn 100 on February 3, 2012. She was born almost 100 years ago but when she was born it had only been 86 years since Thomas Jefferson and John Adams died. So there were people alive when she was born who were alive when Jefferson and Adams were alive. On top of that, consider this: 86 years ago from this time, Joan Crawford was starting her Hollywood career in the silents and Charlie Chaplin was making The Gold Rush. Wrap your head around that for a little while.
And while you're at it, visit this picture gallery for dozens of great photos of Mary Carlisle.