The Washington Post’s commemoration of the Civil War’s 150th anniversary continues with our third special section, printed Sunday. We explore some important ripple effects of the war, including the growth of the federal government.

One unsung hero of the bureaucracy was President Abraham Lincoln’s quartermaster general, Montgomery Meigs. As my colleague Robert O’Harrow wrote in a recent story for the Post Magazine, Meigs brilliantly ran a massive logistical operation to feed, clothe and supply the Union troops. And he cleaned up widespread corruption in the supply chain.