Before the robber barons there were Civil War barons--a remarkable yet largely unknown group of men whose contributions won the war and shaped America's future. The Civil War woke a sleeping giant in America, creating unprecedented industrial growth that not only supported the struggle but reshaped the nation. Energized by the country's dormant potential and wealth of natural resources, individuals of vision, organizational talent, and capital took advantage of the opportunity that war provided. Their innovations sustained Union troops, affected military strategy and tactics, and made the killing fields even deadlier. Their ranks included men such as: John Deere, whose plows helped feed large armies Gail Borden, whose condensed milk nourished the Union army The Studebaker Brothers, whose wagons moved war supplies from home front to war front Robert Parrott, whose rifled cannon was deployed on countless battlefields. and many others. Individually, these men came to dominate industry and amass great wealth and power; collectively, they helped save the Union and refashion the economic fabric of a nation. Utilizing extensive research in manuscript collections, company records, and contemporary newspapers, historian Jeffry D. Wert casts a revealing light on the individuals most responsible for bringing the United States into the modern age.