By Gretchen McKay
From Pittsburgh Post-Gazette
Irwin—Three generations of Tom Kerber’s family have been making some of Pennsylvania’s best ice cream for more than six decades. Millions of scoops later, everything about the ice cream business still makes the 84-year-old smile.
“This is our little piece of heaven,” he says, gesturing to the rolling fields beyond the 10,000-square-foot building in which his son, Tom Jr., churns out up to 1,000 cartons of ice cream a week.
Down the hill to the right of his eponymous dairy store on Guffey Road, a half-acre miniature golf course rings with laughter as kids and their parents take turns smacking golf balls. To its left is an all-season tubing track on which riders can whiz some 400 feet down the hill on a polymer carpet….