When George Westinghouse Jr. founded the Westinghouse Air Brake Company, his air brakes, railroad equipment, and industrial pneumatic devices revolutionized rail travel, opening a new chapter in American industrial history. Not only were the products of his first company revolutionary, but the small borough he founded in 1890 in southwestern Pennsylvania became a model for residential and industrial development. Wilmerding, precisely planned and built according to Westinghouse's specifications, would house the workers-skilled and unskilled, black and white-who would produce George...