Met the second oldest person I've ever met in my life today. I could never have guessed he was 92. Ironically, the oldest people I've met in my life upto this point were in India - a 95 year old Australian woman in 2001 and a relative who's going to be 90 in February. I say ironically because India is orders of magnitude below the US in quality of life, etc. But, make no mistake - America still has the oldest people around. For all you know, the guy who actually killed Lincoln could still be out there trying to kill another Republican president.
What's the secret? Mr. Miller spent 37 years in the coal mines - the hard physical labour.