The 133rd Pennsylvania Infantry Regiment lost 4 officers and 40 enlisted men killed or mortally wounded and 33 enlisted men to disease during the Civil War.

August Organized at Harrisburg
August 19 Moved to Washington, D.C.
September 2 Moved to Rockville, Md. and attached to 2nd Brigade, 3rd Division, 5th Army Corps, Army of the Potomac.
September-October Duty at Sharpsburg, Md.
October 30-November 17 Moved to Falmouth, Va.
December 12-15 Battle of Fredericksburg, Va.
January 20-24 Burnside’s 2nd Campaign, “Mud March”
February-April At Falmouth
April 27-May 6 Chancellorsville Campaign
May 1-5 Battle of Chancellorsville
May 26 Mustered out