The 20th Massachusetts Infantry Regiment lost 17 officers and 243 enlisted men killed or mortally wounded and 1 officer and 148 enlisted men to disease in the Civil War. It is honored by a monument at Gettysburg.
August 29 - September 4
Organized at Readville under Colonel William R. Lee.
Left State for Washington, D.C.; attached to Lander's Brigade, Division of the Potomac
Moved to Poolesville, Md. and guard duty along Upper Potomac
Operations on the Potomac
Action at Ball's Bluff
The regiment lost 2 officers and 13 men killed, 6 officers and 38 men wounded, and 6 officers and 129 men missing, including Colonel Lee, who was captured.
Near Edwards' Ferry
Moved to Muddy Branch and duty there
Moved to Harper's Ferry, thence to Charlestown and Berryville
Ordered to Washington, D.C.
To the Peninsula
April 5-May 4
Siege of Yorktown. Colonel Lee is exchanged and rejoins the regiment.
May 31-June 1
Battle of Fair Oaks, Seven Pines
June 25-July 1
Seven days before Richmond
Oak Grove, near Fair Oaks
Peach Orchard and Savage Station
White Oak Swamp and Glendale
Colonel Lee is badly injured when his horse fell on him.
July 1 and
August 6 - 15
At Harrison's Landing
Movement to Alexandria
March to Fairfax C. H.
Cover retreat of Pope's army from Bull Run
South Mountain, Md. (Reserve)
Battle of Antietam
Moved to Harper's Ferry and duty there
Reconnaissance to Charlestown
Advance up Loudon Valley and movement to Falmouth, Va.
Battles of Fredericksburg
Forlorn hope to cross Rappahannock December 11
Colonel Lee is offered command of a brigade but offered his resignation, which was accepted.
December - April
Duty at Falmouth
April 27-May 6
Maryes Heights, Fredericksburg
June 11-July 24
Battle of Gettysburg
The 20th was commanded by Colonel Paul Joseph Revere, grandson of Paul Revere of Revolutionary War fame. He was mortally wounded on July 2nd, dying on the 4th. Lieutenant Colonel George N. Macy then took over until he was wounded on July 3, losing his left hand. Captain Henry L. Abbott then took over the regiment.
The 20th brought 301 men to the field, losing 30 killed, 94 wounded and 3 missing.
From the monument: "This tablet is placed by their comrades in honor of Colonel Paul Joseph Revere, First Lieutenant Henry Ropes, Second Lieutenant Sumner Paine, and forty-one enlisted men who were killed or mortally wounded."
From a bronze marker near the Copse of Trees: "When Pickett's Division pierced the Union line this regiment retired by its right flank, faced left, and rushed up to this copse of trees and attacked Pickett's troops then coming over the wall."
Advance from the Rappahannock to the Rapidan
Advance to line of the Rappahannock
Mine Run Campaign
Demonstration on the Rapidan
Assigned to 1st Brigade, 2nd Division, 2nd Army Corps
February - May
Campaign from the Rapidan to the James
Battles of the Wilderness
Spottsylvania C. H.
Assault on the Salient
North Anna River
Line of the Pamunkey
Siege of Petersburg begins
Jerusalem Plank Road
Demonstration north of the James
Strawberry Plains, Deep Bottom
Boydton Plank Road, Hatcher's Run
Dabney's Mills, Hatcher's Run
March 28-April 9
Fall of Petersburg
High Bridge and Farmville
Appomattox C. H. Surrender of Lee and his army.
April 10 - May 2
March to Washington, D.C.
Duty at Washington