Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861. Regiment organized at Pittsburg, Pa. Moved to Washington, D.C., October 12, 1861. Attached to Stoneman's Cavalry Command, Army Potomac, to March, 1862. Emery's Brigade, Cavalry Reserve, Army Potomac, to July, 1862. 1st Brigade, Cavalry Division, Army Potomac, to September, 1862. 1st Brigade, Pleasanton's Cavalry Division, Army Potomac, to October, 1862. 2nd Brigade, Pleasanton's Cavalry Division, Army Potomac, to February, 1863. Reserve Brigade, 1st Division, Cavalry Corps, Army Potomac, to August, 1864. 3rd (Reserve) Brigade, 1st Division, Cavalry Corps, Army Shenandoah, Middle Military Division, to March, 1865. 3rd Brigade, 1st Division, Cavalry Corps, Army Potomac, to June 1865. Frederick, Md., 8th Army Corps, Middle Dept., to October, 1865.
Service:
-Duty in the Defences of Washington, D.C., till March, 1862. Advance on Manassas, Va., March 10-15. Reconnoissance to Cedar Run March 14-16. Moved to Virginia Peninsula March 27-30. Siege of Yorktown April 5-May 4. Cheese Cake Church May 4. Slatersville May 9. New Kent Court House May 11. New Bridge May 20. Mechanicsville May 24, Hanover Court House May 27. Operations about Hanover Court House May 27-29. Destruction of bridges, South Anna River, May 28-29. Expedition to Wormsley Ferry June 2. Operations against Stuart June 13-15. Ashland June 16. Seven days before Richmond June 25-July 1. Operations about White House June 26-July 2. Black Creek June 26. Malvern Hill August 5. Movement to Alexandria August 15-26. Maryland Campaign September 6-22. Fall's Church September 5. Sugar Loaf Mountain near Frederick, September 10-11. Petersville September 15. Antietam September 16-17. Shepherdstown Ford September 19-20. Charlestown September 28. Hillsboro September 29. Reconnoissance from Harper's Ferry to Leesburg October 1-2. Waterford October 1. Charlestown October 6. Reconnoissance to Charlestown October 16-17. Charlestown October 16. Philomont November 1. Union November 2-3. Upperville and Bloomfield November 2-3. Ashby's Gap November 3. Markham Station November 4. Barbee's Cross Roads, Chester Gap and Markham November 5-6. Amissville November 7-8. Little Washington November 8. Newby's Cross Roads November 9. Corbin's Cross Roads, near Amissville, November 10. Sulphur Springs November 17. Battle of Fredericksburg, Va., December 12-15. Chancellorsville Campaign April 27-May 8, 1863. Stoneman's Raid April 29-May 8. Stevensburg April 29. Brandy Station and Beverly Ford June 9. Middleburg June 19. Upperville June 21. Battle of Gettysburg, Pa., July 1-3. Williamsport, Md., July 6. Funkstown July 7. Boonesboro July 8. Benevola or Beaver Creek July 9. At and near Funkstown July 10-13. Falling Waters July 14. Manassas Gap, Va., July 21-22. Wapping Heights July 23. Kelly's Ford July 31-August 1. Brandy Station August 1-4. Advance from the Rappahannock to the Rapidan September 13-17. Bristoe Campaign October 9-22. Brandy Station October 11. Advance to line of the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Demonstration on the Rapidan February 6-7, 1864. Barnett's Ford February 6-7. Rapidan Campaign May 4-June 12. Wilderness May 5-7. Todd's Tavern May 7-8. Sheridan's Raid to James River May 9-24. Ground Squirrel Church and Yellow Tavern May 11. Richmond fortifications May 12. Line of the Pamunkey May 26-28. Hanovertown Ferry and Hanovertown May 27. Haw's Shop May 28. Totopotomoy May 28-31. Old Church and Mattadequin Creek May 30. Cold Harbor May 31-June 1. Sheridan's Trevillian Raid June 7-24. Trevillian Station June 11-12. Mallory's Cross Roads June 12. Black Creek or Tunstall Station and White House or St. Peter's Church June 21. Siege of Petersburg till August. Deep Bottom July 27-28. Malvern Hill July 28. Sheridan's Shenandoah Valley Campaign August 7-November 28. Sevier's Ford, Opequan Creek, September 15. Battle of Opequan, Winchester, September 19. Fisher's Hill September 21-22. Luray Valley September 24. Battle of Cedar Creek October 19. Raid from near Winchester to Gordonsville December 19-28. Sheridan's Raid from Winchester February 27-March 25, 1865. Occupation of Staunton March 2. Action at Waynesboro March 2. Duguidsville March 8. Appomattox Campaign March 28-April 9. Dinwiddie Court House March 30-31. Five Forks April 1. Scott's Cross Roads April 2. Tabernacle Church or Beaver Pond Creek April 4. Amelia Springs April 4-5. Sailor's Creek April 6. Appomattox Station April 8. Appomattox Court House April 9. Surrender of Lee and his army. Expedition to Danville April 23-29. March to Washington, D.C., May. Grand Review May 23. At Frederick, Md., till October.
Regiment lost during service 2 Officers and 50 Enlisted men killed and mortally wounded and 1 Officer and 106 Enlisted men by disease. Total 159.
