The tractor coughed but didn’t catch, so the old farmer on the ground yelled up to the old farmer behind the wheel. “The black button,” Don Magee said. “You push it in.” And then it roared to life, an ...

“We had some of these on the farm when I was a little boy,” writes Wilmer Nolt, of Denver. “My dad would fasten this in the palm of his hand with the leather strap when picking and husking corn by ...