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123rd Pennsylvania Infantry

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Country  United States
Branch  Infantry
Allegiance  Union
Active  August 1862 to May 13, 1863
Engagements  Battle of Antietam Battle of Fredericksburg Battle of Chancellorsville

The 123rd Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.



The 123rd Pennsylvania Infantry was organized at Allegheny City, Pennsylvania, and mustered in August 1862 for nine month's service under the command of Colonel John B. Clark.

The regiment was attached to 2nd Brigade, 3rd Division, V Corps, Army of the Potomac, to May 1863.

The 123rd Pennsylvania Infantry mustered out May 13, 1863.

Detailed service

Moved to Harrisburg, Pa., then to Washington, D.C., August 20-23, 1862. Maryland Campaign September 6-24, 1862. Duty at Sharpsburg, Md., until October 30. Movement to Falmouth, Va., October 30-November 19. Battle of Fredericksburg December 12-15. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. Duty at Falmouth until April 27. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5.


The regiment lost a total of 72 men during service; 3 officers and 27 enlisted men killed or mortally wounded, 1 officer and 41 enlisted men died of disease.


  • Colonel John B. Clark
  • References

    123rd Pennsylvania Infantry Wikipedia

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