Pouring steel at Jones & Laughlin

By the start of World War II, J&L was the fourth largest steel producer in the world, producing over 4.8 million tons of steel a year and employing 45,000 workers. Despite operating in the direct shadow of United States Steel's Duquesne, Homestead, and Edgar Thomson Works, J&L remained an independent steel company holding its own in a crowded market. This independence lasted until 1974, when the company merged with the French Ling-Temco-Vought Corporation (LTV).