The regiment is honored by a monument at Gettysburg.
Right Wing (Cos. A, B, C, D, E and F) organized at Madison, Ind. for 1st Cavalry
Moved to Washington, D.C.
Designated 3rd Cavalry; Attached to Hooker's Division, Army of the Potomac under the command of Colonel Scott Carter and Major George Chapman; Duty at Budd's Ferry, Md.
Capt. Jacob S. Buchanan of Company A becomes lieutenant colonel.
Assigned to duty in Lower Maryland by Detachments
Capture of Sloop "Victory"
Companies A, B and F in St. Mary's County, Company "E" at Maryland Point and Port Tobacco
Lower Maryland, Middle Department
Charles Chase becomes major
Attached to Geary's Independent Brigade, Dept. of the Rappahannock
Regiment moved to Washington, D.C.
To Thoroughfare Gap, Va.
Action at Wardensville
Attached to Shields' Division, Dept. of the Rappahannock
Joined Shield's Command at Luray and movement to Front Royal
Attached to Farnsworth's 2nd Brigade, Pleasanton's Cavalry Division, Army of the Potomac
At Bristoe Station
At Falmouth, Va.
Major Chase resigns, and is replaced by Robert Klein
Action at Mt. Carmel Church
Reconnaissance to Orange Court House
Expedition to Frederick's Hall Station and Spottsylvania Court House
Thornburg's Mills and Massaponax Church
Pope's Campaign in Northern Virginia. Centreville
Battle of Bull Run
Centreville and Chantilly
September - October
Barnesville and Monocacy Church
Sugar Loaf Mountain
Catoctin Mountain and Middletown
Battle of Antietam
Reconnaissance to Martinsburg and Shephardstown, W. Va.
Pursuit of Stuart into Pennsylvania
Mouth of Monocacy
Lt. Colonel Buchanan resigns and is replaced by George Champan; Captain William S. McClure of Company E becomes major.
Attached to 2nd Brigade, Cavalry Division, Army of the Potomac
Upperville and Bloomfield
Barber's Cross Roads
Battle of Fredericksburg, Va.
Attached to 1st Brigade, 1st Division, Cavalry Corps, Army of the Potomac
Colonel Carter resigns; George Chapman becomes colonel, Robert Kline lieutenant colonel and
Captain Charles Lemon of Company C major.
Rearguard at Freeman's Ford. Lost 26 casualties withdrawing under attack across the rising Rappahannock River
April 27 - May 6
April 29-May 8
William Patton becomes major
Brandy Station and Beverly Ford
Upperville and Middleburg
Battle of Gettysburg
The regiment was commanded by Colonel George H. Chapman, and was combined for the Gettysburg campaign with the 12th Illinois Cavalry. The 3rd brought 313 men to the field, of whom 6 were killed, 21 wounded and 5 missing, including Major Charles Lemon, mortally wounded on July 1st.
Benevola (or Beaver Creek)
July 31-August 1
August 1-3 and 4
Advance from the Rappahannock to the Rapidan
Culpeper Court House
Reconnaissance across the Rapidan
Jack's Shop, Madison Court House
Raccoon and Morton's Fords
Stevensburg, near Kelly's Ford, and Brandy Station
Brandy Station, or Fleetwood
Advance to line of the Rappahannock
Muddy Run, Culpeper
Mine Run Campaign
Scout from Culpeper to Madison Court House
Demonstration on the Rapidan; Barnett's Ford
February 28 - March 4
Kilpatrick's Raid to Richmond
Fortifications of Richmond, Hanover Junction and Ashland
Attached to 2nd Brigade, 3rd Division, Cavalry Corps, Army of the Potomac
Captain Benjamin Q. A. Gresham of Company B promoted to major
Craig's Meeting House
Alsop's Farm, Spottsylvania
Sheridan's Raid to the James River
North Anna River
Ground Squirrel Church and Yellow Tavern
Brook Church (or Richmond Fortifications)
Demonstration on Little Run
On line of the Pamunkey
Totopotomoy, Gaines' Mill, Salem Church and Haw's Shop
Haw's Shop and near Via's House
White Oak Swamp
June - August
Siege of Petersburg
Wilson's Raid to Southside & Danville R. R.
Nottaway Court House and Black and White Station
Captain George H. Thompson of Company E and Alfred Gadis promoted to major
Staunton River Bridge (or Roanoke Station)
Sappony Church (or Stony Creek)
June 30 - July 3
July 7 and 22
Colonel Chapman is promoted to Brigadier General
August 7 -
Sheridan's Shenandoah Valley Campaign; Army of the Shenandoah, Middle Military Division
Near Brucetown and Winchester
Battle of Opequan, Winchester
and October 2
Back Road, near Strasburg
Cedar Creek and Rude's Hill, near New Market
Expedition from Kernstown to Lacey Springs
February 27 -
Sheridan's Raid from Winchester
Dinwiddie Court House
Appomattox Court House; Surrender of Lee and his army.
Grand Review at Washington. D.C.
Moved to Louisville, Ky.