James Oliver and the Plow That Broke the Prairie
Near South Bend, Indiana
The Midwest was built on farming, and farming the Midwest was, for a long time, nearly impossible. The problem was the soil. The rich black loam of Indiana and Illinois was sticky and heavy, and it clung to cast iron plow blades. A farmer would drive fifty feet, stop, scrape the blade clean, drive another fifty, stop again. The plow would not scour. That was the technical term: scour. The soil would not slide off the blade cleanly, and plowing a field took hours of extra work just clearing the blade over and over.
James Oliver, a South Bend blacksmith, solved it. Beginning in the eighteen fifties, Oliver developed a process of rapidly chilling the molten iron near the surface of a casting. The result was a plow bottom with a hardened outer shell that was both more durable and more slippery. The soil broke from it cleanly. He received his first patent on June thirtieth, eighteen fifty-seven.
The numbers that followed tell the story. In eighteen seventy-one, the Oliver Chilled Plow Works sold fifteen hundred plows per year. By eighteen seventy-four, the number was seventeen thousand. By nineteen ten, the company was purchasing over forty thousand tons of pig iron annually. Oliver's factory, originally in Mishawaka and later relocated to South Bend, covered fifty-eight acres with twenty-five acres under roof.
The chilled plow did not merely improve farming. It made the large-scale cultivation of the American interior economically practical on a scale that had not existed before. The Great Plains opened partly because of what James Oliver worked out in a South Bend foundry.
His son Joseph built a thirty-eight-room mansion nearby called Copshaholm, named after a Scottish village connected to the family's origins. It still stands, with its original furnishings, as a museum of what industrial success in the Gilded Age actually looked like up close.
