retreat to Centreville August 30–31. Maryland Campaign September 6–22. Battle South Mountain September 14. Battle of Antietam September 16–17. Duty at Sharpsburg, Md., until October 29. Movement to Falmouth, Va., October 29 – November 19. Battle of Fredericksburg December 12–15. Duty at Falmouth until April 27, 1863. "Mud March" January 20–24. Chancellorsville Campaign April 27 – May 6. Operations at Franklin's Crossing April 29 – May 2. Battle of Maryes Heights, Fredericksburg, May 3. Salem Heights May 3–4. Banks Ford May 4. Gettysburg Campaign June 11 – July 24. Battle of Gettysburg July 2–4. Pursuit of Lee to Manassas Gap, Va. Fairfield, Pa., July 5. At and near Funkstown, Md., July 10–13. Near Warrenton, Va., until September 15, and at Culpeper until October. Bristoe Campaign October 9–22. Advance to line of the Rappahannock November 7–8. Rappahannock Station November 7. Mine Run Campaign November 26 – December 2. At Brandy Station until May 1864. Campaign from the Rapidan to the James May 3 – June 15. Battle of the Wilderness May 5–7. Spotsylvania May 8–12. Spotsylvania Court House May 12–21. Assault on the Salient, "Bloody Angle," May 12. North Anna River May 23–26. On line of the Pamunkey May 26–28. Totopotomoy May 28–31. Battles about Cold Harbor June 1–12, 1864. Before Petersburg June 17–19. Siege of Petersburg until July 9. Jerusalem Plank Road June 22–23. Moved to Washington, D.C., July 9–11. Repulse of Early's attack on Fort Stevens and the northern defenses of Washington July 11–12. Pursuit of Early to Snicker's Gap, Va., July 14–23. Sheridan's Shenandoah Valley Campaign August 7 – November 28. Strasburg August 14–15. Cedar Creek August 15. Winchester August 17. Charlestown August 21–22. Battle of Winchester September 19. Fisher's Hill September 22. Battle of Cedar Creek October 19. Duty in the Shenandoah Valley until December. Moved to Washington, D.C., then to Petersburg, Va. Siege of Petersburg December 1864 to April 2, 1865. Dabney's Mills, Hatcher's Run, February 5–7, 1865. Appomattox Campaign March 28 – April 9. Fall of Petersburg April 2. Pursuit of Lee April 3–9. Appomattox Court House April 9. Surrender of Lee and his army. March to Danville April 23–27 and duty there until May 18. March to Richmond, Va., thence to Washington, D.C., May 18 – June 3. Corps review June 8. Non-veterans were relieved for muster out at the end of May 1864. Veterans and recruits were temporarily attached to the 15th New