4th Pennsylvania Cavalry The 4th Pennsylvania Cavalry Regiment was a cavalry regiment of the Union Army during the American Civil War . History . The regiment was formed in late 1861 , in Philadelphia , Harrisburg , and Pittsburgh for a 3 year service . It was mustered into Federal service at the Soldier ' s Home near Washington , D . C . By March 1 only 6 companies were fully mounted , and one partially mounted . See Detailed Service for the regiment ' s service . Detailed Service . Taken from Pennsylvania in the Civil War Provost duty at Washington , D . C . , till May 10 , 1862 . ( Cos . " A , " " B " escort to Gen . Keys December 28 , 1861 , to February 25 , 1862 . ) Joined McDowell at Fredericksburg May , 1862 , and scouting on the Rappahannock till June 14 . Moved to the Virginia Peninsula , arriving at White House June 24 . Companies " A , " " G , " " H " and " K " ordered to Yorktown , Va . , June 25 . Seven days before Richmond June 25 - July 1 . Meadow Bridge near Mechanicsville June 26 . Mechanicsville June 26 . Gaines ' Mill , Cold Harbor , June 27 . Reconnaissance to Bottom ' s Bridge June 28 . Rear guard to Army Potomac June 29 . Glendale or Nelson ' s Farm June 30 . Malvern Hill July 1 . Reconnaissance to Charles City C . H . July 2 – 3 . At Harrison ' s Landing till August 16 . Reconnaissance from Harrison ' s Landing July 11 and July 29 ( Co . " F " ) . Rear Guard to Yorktown August 16 – 18 . Duty at Yorktown till August 25 . Reached Washington , D . C . , September 4 . Maryland Campaign September – October . Battles of South Mountain September 14 , and Antietam September 16 – 17 . Sharpsburg September 19 . Shepherdstown Ford September 19 . Kearneysville and Shepherdstown , W . Va . , October 15 – 16 ( Detachment ) . Scout to Smithfield October 16 – 17 ( Detachment ) . Hedgesville October 20 and 22 . Hillsboro and Lovettsville Road October 21 . Bloomfield , Union and Upperville November 2 – 3 . Ashby ' s Gap November 3 . Markham Station November 4 . Manassas Gap November 5 – 6 . Jefferson November 7 . Little Washington November 8 . Duty near Hartwood Church till December . Gaines ' Cross Roads November 10 . Waterloo November 14 . Battle of Fredericksburg December 12 – 15 . Scout to Catlett ' s Station and Brentsville December 21 – 23 ( Detachment ) . Expedition to Richard ' s and Ellis ' Fords , Rappahannock River , December 29 – 30 . " Mud March " January 20 – 24 , 1863 . Operations at Rappahannock Bridge and Grove Church February 5 – 7 . Hartwood Church February 25 . Kelly ' s Ford March 17 and 29 . Chancellorsville Campaign , Stoneman ' s Raid , April 29 - May 8 . Passage of Kelly ' s Ford April 29 . Raccoon Ford April 30 . Ely ' s Ford May 2 . Stevensburg , Brandy Station and Beverly Ford June 9 . Aldie June 17 . Middleburg June 18 – 19 . Upperville June 21 . Hanover , Pa . , June 30 . Battle of Gettysburg , Pa . , July 1 – 3 . Green Oak July 5 . Near Harper ' s Ferry July 14 . Shepherdstown July 15 – 16 . Scouting till September . Corbin ' s Cross Roads September 1 . Advance from the Rappahannock to the Rapidan September 13 – 17 . Culpeper C . H . September 13 . Near Culpeper C . H . October 1 . Bristoe Campaign October 9 – 22 . James City October 10 – 11 . Near Warrenton October 11 . Warrenton or White Sulphur Springs October 12 – 13 . Jeffersonton October 12 . Auburn and Bristoe Station October 14 . St . Stephen ' s Church October 14 . Advance to line of the Rappahannock November 7 – 8 . Mine Run Campaign November 26 - December 2 . Brentsville November 26 . New Hope Church and Catlett ' s Station November 27 . Brentsville November 29 . ( Cos . " A , " " F " at Bull Run Bridge November , 1863 , to January 20 , 1864 . ) Scout to Middleburg January 22 – 24 , 1864 ( Detachment ) . Kilpatrick ' s Raid on Richmond February 28 - May 4 . Beaver Dam Station February 29 . Brook ' s Turnpike March 1 ( Veterans on furlough March 25 - April 25 . At Camp Stoneman till May 12 , and Joined Army Potomac May 19 . ) Campaign from the Rapidan to the James May – June , 1864 . Sumner ' s Bridge May 3 . Todd ' s Tavern May 5 – 8 . Sheridan ' s Raid to James River May 9 – 24 . North Anna River May 9 – 10 . Ground Squirrel Church and Yellow Tavern May 11 . Glen Allen Station May 11 . Brook Church or Richmond Fortifications May 12 . Line of the Pamunkey May 26 – 28 . Haw ' s Shop May 28 . Totopotomoy May 28 – 31 . Cold Harbor May 31 - June 1 . Sumner ' s Upper Bridge June 2 . Sheridan ' s Trevillian Raid June 7 – 24 . Elliott ' s Mills June 8 . Trevillian Station June 11 – 12 . White House or St . Peter ' s Church June 21 . Black Creek or Tunstall Station June 21 . St . Mary ' s Church June 24 . Siege of Petersburg June , 1864 , to April , 1865 . Charles ' Cross Roads June 29 . Warwick Swamp July 12 . Demonstration on north side of the James July 27 – 29 . Malvern Hill July 28 . Warwick Swamp July 30 . Demonstration north of the James at Deep Bottom August 13 – 20 . Gravel Hill August 14 . Strawberry Plains August 16 – 18 . White Oak Swamp August 18 . Weldon Railroad August 18 – 21 ( Detachment ) . Dinwiddie Road near Ream ' s Station August 23 . Ream ' s Station August 25 . Reconnaissance to Poplar Springs Church September 13 . Reconnaissance toward Dinwiddie C . H . September 15 . Belcher ' s Mills September 17 . Ream ' s Station September 29 . Poplar Springs Church September 29 - October 2 . Arthur ' s Swamp September 30 - October 1 . Boydton Plank Road , Hatcher ' s Run , October 27 – 28 . Reconnaissance to Stony Creek November 7 . Stony Creek Station December 1 . Hicksford Expedition December 7 – 12 . Bellefield December 8 . High Hill December 10 . Rowanty Creek February 5 , 1865 . Dabney ' s Mills , Hatcher ' s Run , February 5 – 7 . Appomattox Campaign March 28 - April 9 . Lewis Farm near Gravelly Run March 29 ( Co . " C " ) . Dinwiddie C . H . March 30 – 31 . White Oak Road March 31 ( Co . " C " ) . Five Forks April 1 . Paine ' s Cross Roads and Amelia Springs April 5 . Sailor ' s Creek April 6 . Farmville April 7 . Appomattox Court House April 9 . Surrender of Lee and his army . Expedition to Danville April 23 – 29 . Expedition after Extra Billy Smith May 20 – 22 . At Lynchburg till June 10 . Mustered out July 1 , 1865 . Casualties . During its service , the regiment had 98 men killed or mortally wounded with another 260 men die of disease .