While Lee was surrendering, one of the last battles of the Civil War took place at Dingle's Mill on Easter Day. General Edward E. Potter's Union troops had arrived in Georgetown on April 5th to begin a march inland along what is U.S. 521 today to destroy warehouses, railroad lines, and supplies. South of town at Dingle's Mill, Sumter's defenders assembled a small force of 154 men, including Colonel George W. Lee's 20th S.C. Militia, the 44th Clarendon Militia, and local hospital convalescent soldiers, and chose to stand where a creek and swamp cut the roads into town on the most direct route into Sumter. Lieutenant McQueen commanded one cannon facing the causeway, and Lieutenant Painpare, an artilleryman from New Orleans recovering from wounds in Sumter hospital, commanded a second gun hidden to the right behind pines and brush. When the Union troops arrived, the Confederate guns opened fire, and Potter brought up artillery in reply. One of the first Union rounds struck Lieutenant McQueen and killed him, silencing his gun. Potter then sent forward the 25th and 107th Ohio regiments for a direct assault, but Confederate fire swept the causeway and drove them back twice. Surprised by the stubborn defense, Potter ordered the 56th and 157th New York regiments to the left to flank the position through the swamp below the mill dam. The New York troops emerged from the woods about 400 yards on the Confederate right, and Colonel George W. Lee's militiamen reformed and fired on them, but heavy counterfire drove the defenders back. Lieutenant Painpare was mortally wounded, silencing the last Confederate cannon, and with their guns disabled and their position turned, the Confederates fell back toward Sumter, made one more stand by a rail fence, and were finally driven from the field. Six Confederates were killed, eight were wounded, and two were captured; three Union soldiers were killed and 23 were wounded. After the battle, Potter's men occupied Sumter and spent the next day destroying railroad property, the jail, and newspaper presses.