87th Pennsylvania Infantry The 87th Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War . Service . The 87th Pennsylvania Infantry was organized at York , Pennsylvania and mustered in for a three year enlistment in September 1861 under the command of Colonel George Hay . The regiment was attached to Railroad Guard , Middle Department , to May 1862 . Baltimore , Maryland , Middle Department , to June 1862 . Railroad Division , VIII Corps , Middle Department , to March 1863 . 2nd Brigade , 2nd Division , VIII Corps , Middle Department , to June 1863 . 1st Brigade , Elliott ' s Command , VIII Corps , to July 1863 . 3rd Brigade , 3rd Division , III Corps , Army of the Potomac , to March 1864 . 1st Brigade , 3rd Division , VI Corps , Army of the Potomac and Army of the Shenandoah , to June 1865 . The 87th Pennsylvania Infantry mustered out of service at Alexandria , Virginia on June 29 , 1865 . Detailed service . Guard duty on Northern Central Railroad from Pennsylvania line to Baltimore , Md . , September 16 , 1861 to May 24 , 1862 . Duty at Baltimore , Md . , until June 23 . At New Creek , W . Va . , until August 20 . Expedition under Gen . Kelly across Laurel Hill and Rich Mountain August 27 - September 12 . Expedition over Cheat and Allegheny Mountains October 31 - November 12 . March on Petersburg , W . Va . , December 6 – 9 . At Winchester until May 1863 . Reconnaissance toward Wardensville and Strasburg April 20 . Expedition to Webster May 20 . At Winchester until June 15 . Reconnaissance toward Strasburg June 10 . Middletown June 12 . Newtown June 12 . Bunker Hill June 13 ( Companies G & H ) . Battles of Winchester June 13 – 15 . Retreat to Harper ' s Ferry . Escort stores from Harper ' s Ferry to Washington , D . C . , July 1 – 3 . Joined Army of the Potomac and pursuit of Lee July 5 – 24 . Wapping Heights , Manassas Gap , Va . , July 23 . Bristoe Campaign October 9 – 22 . Advance to line of the Rappahannock November 7 – 8 . Kelly ' s Ford November 7 . Brandy Station November 8 . Mine Run Campaign November 26 - December 2 . Payne ' s Farm November 27 . Reenlisted December 1863 . Demonstration on the Rapidan February 6 – 7 , 1864 . Rapidan Campaign May 4 - June 12 , 1864 . Battles of the Wilderness May 5 – 7 ; Spottsylvania C . H . May 8 – 21 . Assault on the Salient May 12 . North Anna River May 23 – 26 . Line of the Pamunkey May 26 – 28 . Totopotomoy May 28 – 31 . Cold Harbor June 1 – 12 . Before Petersburg June 17 – 18 . Siege of Petersburg until July 6 . Weldon Railroad June 22 – 23 . Moved to Baltimore , Md . , July 6 – 9 . Battle of Monocacy Junction July 9 . Sheridan ' s Shenandoah Valley Campaign August 7 - December 1 . Charlestown August 21 – 22 . Battle of Opequan , Winchester , September 19 . Fisher ' s Hill September 22 . ( Old members mustered out October 13 , 1864 . ) Battle of Cedar Creek . Duty at Kernstown until December . Moved to Washington , D . C . , thence to Petersburg , Va . , December 3 – 7 . Siege of Petersburg December 1864 to April 1865 . Fort Fisher , Petersburg , March 25 , 1865 . Appomattox Campaign March 28 - April 9 . Assault on and fall of Petersburg April 2 . Pursuit of Lee April 3 – 9 . Appomattox C . H . April 9 . Surrender of Lee and his army . March to Danville April 23 – 27 , and duty there until May 23 . March to Richmond , Va . , thence to Washington , D . C . , May 23 - June 3 . Corps Review June 8 . Casualties . The regiment lost a total of 202 men during service ; 10 officers and 80 enlisted men killed or mortally wounded , 112 enlisted men died of disease .