apr 25, 1861 - Carnegie is appointed as Superintendent of the Military Railways and the Union Government's telegraph lines in the East

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Carnegie was appointed by Scott, who was now Assistant Secretary of War in charge of military transportation. Andrew 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.

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