121st Pennsylvania Infantry

== Regimental History and Service Record ==
Organized at Philadelphia August 22 to September 5, 1862. Moved to Washington, D.C., September. Camp at Arlington Heights, near Washington, until October 1. Moved to Frederick, Md., and Join Army of the Potomac. Attached to 1st Brigade. 3rd Division, 1st Army Corps, Army of the Potomac, to March, 1864. 3rd Brigade, 4th Division, 5th Army Corps, to June, 1864. 1st Brigade, 1st Division. 5th Army Corps, to September, 1864. 3rd Brigade, 3rd Division, 5th Army Corps, to June, 1865.
SERVICE.--Duty at Sharpsburg, Md., until October 30. Movement to Falmouth, Va., October 30-November 19. Battle of Fredericksburg, Va., December 12-15. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. Duty at Belle Plains until April. 
* April 27-May 6, 1863 - The Chancellorsville Campaign
** Fitzhugh's Crossing April 29-30. 
** May 1-5, 1863 - Battle of Chancellorsville, Virginia
* June 11-August 1, 1863 - The Gettysburg Campaign
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
Pursuit of Lee July 5-24. Duty on line of the Rappahannock until October. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Mine Run Campaign November 26-December 2. Licking River Bridge November 30. Demonstration on the Rapidan February 6-7, 1864. Duty near Culpeper until April, 1864.
* May 4-June 12, 1864 - The Overland Campaign
** May 5-7, 1864 - Battle of the Wilderness, Virginia
** May 8-21, 1864 - Battles of Spotsylvania Court House, Virginia
*** May 8, 1864 - Combat at Laurel Hill, Virginia
*** May 12, 1864 - Assault on the Salient at Spotsylvania Court House, Virginia
** May 22-26, 1864 - Operations on Line of the North Anna River, Virginia
*** May 25, 1864 - Engagement at Jericho Ford, Virginia
** May 26-28, 1864 - Operations on Line of the Pamunkey River, Virginia
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, Virginia
** June 1-12, 1864 - Battles of Cold Harbor, Virginia
*** June 1-3, 1864 - Battle of Bethesda Church, Virginia
Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864 (Reserve). Weldon Railroad August 18-21. Poplar Springs Church, Peeble's Farm, September 29-October 2. Boydton Plank Road, Hatcher's Run, October 27-28. Warren's Raid on Weldon Railroad December 7-12. Dabney's Mills, Hatcher's Run, February 5-7, 1865. Appomattox Campaign March 28-April 9. Lewis Farm, near Gravelly Run, March 29. White Oak Road March 30-31. Five Forks April 1. Appomattox Court House April 9. Surrender of Lee and his army. March to Washington, D.C., May 1-12. Grand Review May 23. Mustered out June 2, 1865.
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service 5 Officers and 104 Enlisted men killed and mortally wounded and 2 Officers and 64 Enlisted men by disease. Total 175.
Source 	Casualties	Remarks
Dyer 	
* 5 Officers and 104 enlisted men killed and mortally wounded 
* 2 Officer and 64 enlisted men killed by disease
* Total 175	None
Fox 	
* Fox lists this unit as:
** 101st on the list of units with losses based on duration of the entire term of service of the unit (19th of the Pennsylvania troops)	
WotRWiki Statistics	
* troops killed
** Includes troops mortally wounded
** Includes troops killed by disease
** All others are troops killed in action or under special circumstances	
== Legacy ==
== Notes ==
== Sources == 
* (Pages 827, 905, 916, 932, 933, 934, 936, 938, 939, 940, 941, 1613)
* (Page 14)
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