Right Wing (Cos. "A," "B," "C," "D," "E" and "F") organized at Madison, Ind., August 22, 1861, for 1st Cavalry. Moved to Washington, D.C., September, 1861. Designated 3rd Cavalry October 22, 1861. Attached to Hooker's Division, Army of the Potomac, to March, 1862. Lower Maryland, Middle Department, to May, 1862. Geary's Independent Brigade, Dept. of the Rappahannock, to June, 1862. Shields' Division, Dept. of the Rappahanaock, to July, 1862. Farnsworth's 2nd Brigade, Pleasanton's Cavalry Division, Army of the Potomac, to November, 1862. 2nd Brigade, Cavalry Division, Army of the Potomac, to February, 1863. 1st Brigade, 1st Division, Cavalry Corps, Army of the Potomac to April, 1864. 2nd Brigade, 3rd Division, Cavalry Corps, Army of the Potomac, and Army of the Shenandoah, Middle Military Division, to June, 1865. Louisville, Ky., to August, 1865.

SERVICE:
Duty at Budd's Ferry, Md., till December, 1861. Assigned to duty in Lower Maryland by Detachments till May, 1862. Capture of Sloop "Victory," December 15, 1861. Companies "A," "B" and "F" in St. Mary's County December, 1861, to April, 1862. Company "E" at Maryland Point and Port Tobacco December, 1861, to April, 1862. Regiment moved to Washington, D. C., May 3; thence to Thoroughfare Gap, Va., May 25. Action at Wardensville May 28. Joined Shield's Command at Luray June 16, and movement to Front Royal. At Bristoe Station till July 7 and at Falmouth, Va., till August 25. Action at Mt. Carmel Church July 23. Reconnoissance to Orange Court House July 24-26. Expedition to Frederick's Hall Station and Spottsylvania Court House August 5-8. Thornburg's Mills and Massaponax Church August 5-6. Pope's Campaign in Northern Virginia. Centreville August 26. Battle of Bull Run August 29-30. Centreville and Chantilly August 31. Maryland Campaign September-October. Poolesville, Md., September 7-8. Nolansville September 9. Barnesville and Monocacy Church September 9. Sugar Loaf Mountain September 10-11. Catoctin Mountain and Middletown September 13. South Mountain September 14. Battle of Antietam September 16-17. Shephardstown Ford September 19. Reconnoissance to Martinsburg and Shephardstown, W. Va., October 1. Pursuit of Stuart into Pennsylvania October 9-12. Mouth of Monocacy October 12. Philomont November 1-2. Union November 2-3. Upperville and Bloomfield November 2-3. Barber's Cross Roads November 5-6. Waterloo Bridge November 7. Little Washington November 8. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Stoneman's Raid April 29-May 8. Rapidan Station May 1. Brandy Station and Beverly Ford June 9. Upperville and Middleburg June 21. Battle of Gettysburg, Pa., July 1-3. Williamsport, Md., July 6. Boonsboro July 8. Benevola (or Beaver Creek) July 9. Funkstown July 10-13. Falling Waters July 14. Chester Gap, July 21-22. Kelly's Ford July 31-August 1. Brandy Station August 1-3 and August 4. Advance from the Rappahannock to the Rapidan September 13-17. Culpeper Court House September 13. Raccoon Ford September 14-16. Reconnoissance across the Rapidan September 21-23. Jack's Shop, Madison Court House, September 22. Raccoon Ford September 22. Rapidan Campaign October 9-22. Raccoon and Morton's Fords October 10. Stevensburg, near Kelly's Ford, and Brandy Station October 11. Brandy Station, or Fleetwood, October 12. Oak Hill October 15. Near Bealeton October 25-26. Catlett's Station November 1. Advance to line of the Rappahannock November 7-8. Muddy Run, Culpeper, November 8. Mine Run Campaign November 26-December 2. Parker's Store November 29. Scout from Culpeper to Madison Court House January 20, 1864. Demonstration on the Rapidan February 6-7. Barnett's Ford February 6-7. Kilpatrick's Raid to Richmond February 28-March 4. Fortifications of Richmond, Hanover Junction and Ashland March 1. Rapidan Campaign May-June. Near Chancellorsville May 4. Craig's Meeting House May 5. Wilderness May 54. Alsop's Farm, Spottsylvania, May 8. Sheridan's Raid to the James River May 9-24. North Anna River May 9-10. Ground Squirrel Church and Yellow Tavern May 11. Brook Church (or Richmond Fortifications) Moy 12. Demonstration on Little Run May 26. On line of the Pamunkey May 26-28. Salem Church May 27. Totopotomoy May 28-31. Mechump's Creek May 31. Cold Harbor June 1-12. Totopotomoy, Gaines' Mill, Salem Church and Haw's Shop June 2. Haw's Shop and near Via's House June 3. Long Bridge June 12. Riddell's Shop June 13. White Oak Swamp June 13. Siege of Petersburg till August. Ream's Station June 22. Wilson's Raid to Southside & Danville R.R. June 22-30. Nottaway Court House and Black and White Station June 23. Staunton River Bridge (or Roanoke Station) June 25. Sappony Church (or Stony Creek) June 28-29. Ream's Station June 29. Jarrett's Station June 30. Ream's Station June 30-July 3. Ream's Station July 7 and 22. Sheridan's Shenandoah Valley Campaign August 7-November 28. Winchester August 17. Near Kearneysville August 25. Near Brucetown and Winchester September 7. Battle of Opequan, Winchester, September 19. Near Cedarville September 20. Front Royal September 21. Milford September 22. Waynesboro September 29 and October 2. Back Road, near Strasburg, October 7. Near Kernstown November 10. Newtown November 12. Cedar Creek and Rude's Hill, near New Market, November 22. Expedition from Kernstown to Lacey Springs December 19-22. Lacey Springs December 21. Sheridan's Raid from Winchester February 27-March 25, 1865. Waynesboro March 2. Ashland March 15. Appomattox Campaign March 28-April 9. Dinwiddie Court House March 30-31. Five Forks April 1. Deep Creek April 3. Sailor's Creek April 5. Appomattox Station April 8. Appomattox Court House April 9. Surrender of Lee and his army. Grand Review at Washington. D. C., May 23. Moved to Louisville, Ky. Mustered out August 7, 1865.