Seventy may be the new 60, and 80 may be the new 70, but 85 is still pretty old to work in America. Yet in some ways, it is the era of the very old worker in America.
Overall, 255,000 Americans 85 years old or older were working over the past 12 months. That's 4.4 percent of Americans that age, up from 2.6 percent in 2006, before the recession. It’s the highest number on record.
They're doing all sorts of jobs — crossing guards, farmers a...