EDGERTON—Archie Morton Sr. speaks plainly about restoring old tractors and showcasing them at the Rock River Thresheree for the past 27 years. “My kids think the Thresheree is quite a big deal because they like to take these tractors up there and drive them, and they look forward to it every year,” he said. “The whole family is.” He might not be effusive about it, but it’s clear the Thresheree matters a great deal to Morton.