Organized at Burlington and mustered in November 19, 1861. Left State for Washington, D. C., December 14; thence moved to Annapolis, Md., December 25, and duty there till March, 1862. Attached to Banks' Division, Army of the Potomac, December, 1861, to March, 1862. Hatch's Cavalry Brigade, Banks' 5th Army Corps, Army of the Potomac, and Dept. of the Shenandoah to June, 1862. Cavalry Brigade, 2nd Army Corps, Army of Virginia, to September, 1862. Price's Cavalry Brigade, Defences of Washington, and 22nd Army Corps to April, 1863. 3rd Brigade, Stahel's Cavalry Division, 22nd Army Corps, to June, 1863. 1st Brigade, 3rd Division, Cavalry Corps, Army of the Potomac, to August, 1863. 2nd Brigade, 3rd Division, Cavalry Corps, Army of the Potomac, to August, 1864, and Army of the Shenandoah, Middle Military Division, to June, 1865.

SERVICE:
Moved to Washington, D. C., March 9-10, 1862; thence to Rockville, Md., and Edward's Ferry March 12-13. Moved to Harper's Ferry, W. Va., March 28; thence to Middletown April 1. Advance up the Valley April 16. Mt. Jackson April 17. McGaheysville April 27 (Cos. "A," "D" and "K"). Somerville Heights May 7 (Co. "B"). Operations in Shenandoah Valley May 15-June 17. Middletown May 24. Winchester May 25. Retreat to Williamsport May 25-26. Near Winchester June 18-19. Reconnoissance from Front Royal to Luray June 29-30. Luray Court House June 30. Culpeper Court House July 12. Gordonsville July 17. Orange Court House August 2 and 13. Pope's Campaign in Northern Virginia August 16-September 2. Fords of the Rappahannock August 21-23. Kelly's Ford August 21. Liberty Bridge September 1. Aquia Creek September 5. Conrad's Ferry September 15. Orange Court House September 21. Ashby's Gap September 22. Duty in the Defences of Washington till March, 1863. Warrenton November 8, 1862. Annandale December 28. Fairfax Court House January 9. Dranesville February 6, 9, 13 and 14. Goose Creek February 16. Leesburg February 19. Aldie March 2. Herndon Station March 17. Broad Run, Dranesville, April l. Warrenton May 11, 23 and 31. Near Greenwich May 30. Littleton and Hanover, Pa., June 30. Hunterstown July 2. Gettysburg, Pa., July 3. Monterey Gap July 4. Smithburg, Md., July 5. Hagerstown July 6. Boonsboro July 8. Hagerstown July 11-13. Falling Water July 14. King George Court House August 25. Lamb's Creek Church September 1. Expedition to Port Conway September 1-3. Advance from the Rappahannock to the Rapidan September 13-17. Culpeper Court House September 13. Somerville Ford September 14. Reconnoissance across the Rapidan September 21-23. Richard's Ford September 26. Bristoe Campaign October 9-22. James City October 10. Bethesda Church October 10. Brandy Station and near Culpeper October 11. Gainesville October 14 and 19. Groveton October 17-18. Catlett's Station and Buckland Mills October 19. Falmouth November 4. Advance to the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Morton's Ford November 26. Raccoon Ford November 26-27. Demonstration on the Rapidan February 6-7, 1864. Kilpatrick's Raid on Richmond February 28-March 4. Fortifications of Richmond and near Atlee's March 1. Old Church March 2. Campaign from the Rapidan to the James May-June. Near Chancellorsville May 4. Craig's Meeting House May 5. Wilderness May 5-7 (Co. "M"). Todd's Tavern May 5-6 and May 7-8. Alsop's Farm, Spottsylvania, May 8. Sheridan's Raid from Todd's Tavern to James River May 9-24. North Anna River May 9. Ground Squirrel Church and Yellow Tavern May 11. Brook Church or Richmond Fortifications May 12. Line of the Pamunkey May 26-28. Demonstration on Little River May 27. Salem Church May 27. On line of the Totopotomoy May 28-31. Ashland May 30. Mechump's Creek May 31. Cold Harbor May 31-June 1. Ashland June 1. Gaines' Mill June 2. Totopotomoy June 2. Haw's Shop June 3. Sumner's Upper Bridge June 3. Salem Church June 4. White Oak Swamp June 12. Riddell's Shop June 13. Malvern Hill June 15. Wilson's Raid on South Side & Danville Railroad June 22-30. Ream's Station June 22. Near Nottaway Court House June 23. Black and White Station June 23. Staunton Bridge or Roanoke Station June 25. Sappony Church or Stony Creek June 28-29. Ream's Station June 29. Siege of Petersburg till August. Sheridan's Shenandoah Valley Campaign August 7-November 28. Winchester August 17. Kearneysville August 25. Near Brucetown and Winchester September 7. Battle of Opequan September 20. Near Cedarville September 20. Front Royal September 21. Milford September 22. Fisher's Hill September 22. Waynesboro September 29. Columbia Furnace and Back Road, near Strasburg, October 7. Tom's Brook, "Woodstock Races," October 8-9. Mount Olive October 9. Battle of Cedar Creek October 19. Near Kernstown November 10. Newtown and Cedar Creek November 12. Rude's Hill, near Mt. Jackson, November 22. Expedition to Lacy Springs December 19-22. Lacy Springs December 21. Sheridan's Raid February 27-March 25, 1865. Waynesboro March 2. Occupation of Staunton March 2. Occupation of Charlottesville March 3. Appomattox Campaign March 28-April 9. Dinwiddie Court House March 30-31. Five Forks April 1. Scott's Corners April 2. Namozine Church April 3. Sailor's Creek April 6. Appomattox Station April 8. Appomattox Court House April 9. Surrender of Lee and his army. Expedition to Danville April 24-29. March to Washington, D. C., May 10-15. Grand Review May 23. Frontier duty at Champlain, N. Y., June to August. Non-Veterans mustered out November 18, 1864. Regiment mustered out August 9, 1865. (Co. "L" was organized at St. Albans September 29, 1862, and Co. "M" at Burlington December 30, 1862.)

Regiment lost during service 10 Officers and 124 Enlisted men killed and mortally wounded and 4 Officers and 200 Enlisted men by disease. Total 438.