Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. When the Civil War began in April 1861, there were only about 16,000 men in the , and many Southern soldiers and officers were already resigning and joining the new . With this drastic shortage of men in the army, President called on the states to raise a force of 75,000 men for three months to put down the in the South. Accordingly, the 1st Delaware was raised at on May 22, 1861 and mustered into Federal service on May 28. The regiment comprised 37 officers and 742 enlisted men under the command of . The regiment was attached to the command of ('Dix's Command", Department of the Potomac) and assigned to duty along the line of the . The regiment mustered out on August 30, 1861.