In 1929, from Maine to California, and spots in-between, some spry senior citizens were interviewed for Movietone newsreels. This video is a compilation of those interviews. Keep in mind when watching that everyone featured was born before the mid-1800s. In the reels, you'll hear them recollect stories from their past and see glimpses of what their life as an elderly person is like.
The footage is from the University of South Carolina's Moving Image Research Collections and was cleaned up and put on YouTube by guy jones.
Here's another one. It features similar interviews but moves into the year 1930. Watch for the farmer at the 2:10 mark, as he doles out some timeless wisdom about "work" vs. "play":
Previously: Listen: Voice recordings of black slaves
(reddit)