The British attack on Lewes, , during the demonstrated Forts Mott, Delaware and DuPont the need for forts to protect the and the ports of Wilmington and form a three-fort defense system Philadelphia. The War Department recognized ’s strategic location across the Delaware River. All three are now state parks, Fort and built two defensive structures there between 1813 and 1827, the second of which Delaware and Fort DuPont under burned in 1831. Delaware’s Division of Parks and Recreation, and under The present Fort Delaware, completed in 1859, just two years before the Civil War the Division of Parks and Forestry. began, was a thoroughly modern defensive structure. Because the weak Confederate navy posed no real threat to the cities along the Delaware and because the Union * Wilmington needed a facility to hold prisoners, the War Department converted the fort into a & Philadelphia

D E L A W A R E camp. Beginning in 1862, captured Confederate soldiers, political RIVER Fort prisoners and federal convicts were imprisoned on the island. Following the Battle Mott of Gettysburg (July 1863), there were between 11,000 and 12,000 prisoners on Pea Fort Delaware Patch Island; over the course of the war, the island had held 33,000 prisoners in all. Delaware City Historical Society of Delaware Courtesy: Fort DuPont In 1945 the federal government declared the island and the fort “surplus.” In 1951, This pencil sketch of Fort Delaware

Delaware the island and fort became state property and the second state park in Delaware. was drawn by Max Neugas, a Bay * . Confederate soldier imprisoned there about 1864. A thirty-foot- The War Department began wide surrounds the brick building Fort Mott in the 1870s. and stone pentagon-shaped fort. Named for Major General Gershom The fort’s armaments were state of Mott, the fort was not completed the art at the time of construction until 1897. and its thirty-two-foot high walls measuring seven to thirty feet thick, The War Department established are formidable. a gun battery in 1863 on the site that would later be named for During the Civil War, many Admiral Samuel Francis DuPont. structures were erected outside the The initial consisted fortified walls including officers’ of a ten-gun auxiliary battery and , 1870 to 1875, by Seth Eastman, Courtesy of Collection of Senate by Seth Eastman, to 1875, 1870 , and civilians’ quarters, a church, during the Civil War was referred various commercial buildings, to as Ten Gun Battery. Most of the workshops, and wooden barracks fort’s buildings were constructed that housed the thousands of between 1898 and 1901. It was Confederate prisoners. headquarters for the harbor defense of the Delaware River during and World War II, and held Delaware Delaware, Fort nearly 3,000 German prisoners of Painting: Painting: Map: MORTAR & ink MORTAR Map: war during World War II. COASTAL DEFENSE FORTS

Sources: Delaware Historical Society; Federal Writers’ Project—Delaware; Historic American Engineering Record; Carol E. Hoffecker, Delaware—A Bicentennial History; John A. Munroe, ; ; New Jersey Division of Parks and Forestry; State of Delaware Division of Parks and Recreation

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