Organized at Springfield June 21, 1861. Moved to Washington, D. C., July 25-28. Attached to Couch's Brigade, Division of the Potomac, to October, 1861. Couch's Brigade, Buell's (Keyes') Division, Army of the Potomac, to March, 1862. 1st Brigade, 1st Division, 4th Army Corps, Army of the Potomac, to September, 1862. 1st Brigade, 3rd Division, 6th Army Corps, to October, 1862. 2nd Brigade, 3rd Division, 6th Army (Corps, to January, 1864. 4th Brigade, 2nd Division, 6th Army Corps, to July, 1864.Duty at Kalorama Heights and Camp Brightwood, Defences of Washington, D. C., till March, 1862. March to Prospect Hill, Va., March 11-15. Embarked at Alexandria for the Peninsula, Virginia, March 25. Siege of Yorktown April 5-May 4. Battle of Fair Oaks, Seven Pines, May 31-June 1. Seven days before Richmond June 25-July 1. Oak Grove, near Seven Pines, June 25. White Oak Swamp June 30. Malvern Hill July 1. At Ball's Bluff till August 16. Reconnoissance to Turkey Island August 5-6, and to Haxall's Landing August 8-11. Movement to Alexandria August 16-September 1, thence march into Maryland September 3-18. Battle of Antietam September 18. At Downsville September 18-October 20. Movement to Stafford C. H. October 20-November 18, and to Belle Plains December 5. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Operations at Franklin's Crossing April 29-May 2. Maryes Heights, Fredericksburg, May 3. Salem Heights May 3-4. Banks' Ford May 4. Franklin's Crossing June 6-7. Battle of Gettysburg, Pa., July 2-4. Bristoe Campaign October 9-22. Rappahannock Station November 7. Mine Run Campaign November 26-December 2. At Brandy Station till May 1, 1864. Reconnoissanee to Madison C. H. February 27-March 2. Rapidan Campaign May-June. Battles of the Wilderness May 5-7. Spottsylvania May 8-12. Spottsylvania C. H. May 12-21. Assault on the Salient at Spottsylvania C. H. May 12. North Anna River May 23-26. Line of the Pamunkey June 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Before Petersburg June 17-19. Ordered home for muster out June 19. Mustered out July 6, 1864.
