“Washington County Regiment”
The monument to the 123rd New York is southeast of Gettysburg on Slocum Avenue. (39.816256° N, 77.218041° W; Google map; Tour map: South Culp’s Hill) Dedicated in 1888 by the State of New York, it features Clio, the muse of history, writing down the regiment’s deeds.
The 123rd New York was commanded at the Battle of Gettysburg by Lieutenant Colonel James C. Rogers while its colonel, Archibald McDougall, commanded the brigade. It brought 495 men to the field, losing 3 killed, 10 wounded and 1 missing.
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From the front of the monument:
123rd New York Infantry
1st Brigade 1st Division 12th Corps
Historic
The 123rd N.Y. was enlisted in Washington Co. in Aug. 1862 mustered into the U.S. service Sept. Joined the Army of the Potomac and was engaged in the battles of Chancellorsville and Gettysburg. In Sept. 1863 transferred to the Army of the Cumberland and was engaged in the Campaign of Atlanta the March to the Sea and the Campaign of the Carolinas. Mustered out at Washington at the close of the war June 8, 1865.
From the right side:
Service at Gettysburg
July 1: Marched from Littlestown; Formed line
of battle on Wolf Hill; Bivouaced near Baltimore Pike
July 2: Advanced to this line and built a heavy breastwork of logs. At about 6 p.m. moved to support the left near Little Round Top;
Returning in the night found works in possession of enemy, as no troops were left to occupy them.
July 3, at about 11 a.m. made a charge and recovered these works; about 4 p.m. moved to support line then repelling Pickett’s Charge; a little later had a sharp skirmish in front of this line; at night repelled an attack with heavy loss to the enemy.
July 4, made reconnaissance around Wolf Hill
and through Gettysburg over the Hanover Road.
From the left side:
Engagements
Chancellorsville • Kulp’s Farm
Gettysburg • Chattahoochie River
Resaca • Peach Tree Creek
Cassville • Atlanta
New Hope Church • Montieth’s Swamp
Lost Mt. • Savannah
Pine Hill • Averysboro
Kennesaw • Bentonville
Moccasin Swamp
From the rear:
123rd New York
The Washington County Regiment
12th and 20th Corps
About 100 yards in front of the line of works, a marker indicates the position occupied by the skirmishers of this Regiment on the afternoon of July 3.

Left Flank monument of the 123rd New York
See more on the 123rd New York Volunteer Infantry Regiment in the Civil War