Once the beehive coke oven was perfected in Fayette County, Pennsylvania, the coal and coke industry began to flourish and supply other fledgling industries with the fuel they needed to succeed. The thrust of this growth came from Henry Clay Frick, who opened his first coal mines in the Morgan Valley of Fayette County in 1871. There, he helped lead the industry, making it the major developmental force in industrial America. This book traces the...