In February, 1865, the regiment was transferred to the 1st Brigade, 3rd Division, V Corps, Army of the Potomac to June, 1865. They took part in the Siege of Petersburg and the Appomattox Campaign, including the Battle of Lewis's Farm, Battle of White Oak Road, Battle of Five Forks, Third Battle of Petersburg and pursuit of General Robert E. Lee's Army of Northern Virginia to Appomattox Court House, Virginia, where Lee surrendered his army on April 9, 1865. As part of a post-war reorganization, they briefly became the 3rd Brigade, 3rd Division, V Corps for duty at Washington, D.C. until July 3, 1865, when they were mustered out.