Recession of 07-09 kneecapped a lot, and I mean a LOT, of the rural jobs out here. Jobs that men were doing and are now gone. Many of these guys would rather have the wife work and deal with the drop in income than to have to admit defeat and work at the local Wall Mart or Taco Bell. The '73 people would have been mid 30's at that point, close to 40 when The Recession was over, and then not hired as the 20 year olds would work for less money and less benefits. What did not surprise me at all was the '83-'92 line. Those men went to college and put off entry into the work force. What did surprise me was the uptick in the 63-72 line. Guys my age when they lose a job are pretty much fucked unless you are at the top of a skill set.
The tidy euphemism used in finance circles is "structural unemployment." As opposed to "seasonal unemployment" or "temporary unemployment." "Temporary unemployment" is due to a downturn. "Seasonal unemployment" means the jobs will come back when the weather comes back. "Structural unemployment" means no one will ever again need to cut ice out of the Hudson to haul to the barn and cover with sawdust against the summer sun.