You are Andrew Carnegie .
In spring 1861, Carnegie was appointed by Scott, who was now Assistant Secretary of War in charge of military transportation, as Superintendent of the Military Railways and the Union Government's telegraph lines in the East. Carnegie helped open the rail lines into Washington D.C. that the rebels had cut; he rode the locomotive pulling the first brigade of Union troops to reach Washington D.C. Following the defeat of Union forces at
Bull Run, he personally supervised the transportation of the defeated forces. Under his organization, the telegraph service rendered efficient service to the Union cause and significantly assisted in the eventual victory. Carnegie later joked that he was "the first casualty of the war" when he gained a scar on his cheek from freeing a trapped telegraph wire.
Defeat of the Confederacy required vast supplies of
munitions, as well as railroads (and telegraph lines) to deliver the goods. The war demonstrated how integral the industries were to American success.
In 1864, Carnegie was one of the early investors in the Columbia Oil Company in
Venango County, Pennsylvania.
[29] In one year, the farm yielded over $1,000,000 in cash dividends, and petroleum from oil wells on the property sold profitably. The demand for iron products, such as armor for gunboats, cannons, and shells, as well as a hundred other industrial products, made Pittsburgh a center of wartime production. Carnegie worked with others in establishing a steel
rolling mill, and steel production and control of industry became the source of his fortune. Carnegie had some investments in the iron industry before the war. (Wikipedia)