Battle of Cedar Mountain

Pope’s Campaign in Northern Virginia

Battle of Gainesville

Battle of Groveton (Brawner’s Farm)

Second Battle of Bull Run (Second Manassas)

The regiment lost 22 men killed or mortally wounded, 2 officers and 31 men wounded, and 28 men missing

Maryland Campaign

Attached to 3rd Brigade, 1st Division, 1st Army Corps, Army of the Potomac

South Mountain

The regiment deployed as skirmishers in the fighting at Turner’s Gap. The regiment lost 3 men killed or mortally wounded, 9 men wounded and 1 man missing. Colonel Lord was reported sick in an ambulance and was not with regiment.

Battle of Antietam

The 35th New York Infantry Regiment lost Captain James Barnett and 11 men killed or mortally wounded, Captain George Flower, 4 other officers and 46 men wounded, and 4 men missing.

There are three markers for Patrick’s Brigade on the Antietam battlefield. The first marker is on the east side of Mansfield Avenue near its intersection with the Hagerstown Pike.

From the marker:

On the night of September 16, 1862, Patrick’s Brigade of Doubleday’s Division bivouacked in line of battle on the east side of this road, facing west.

This tablet marks the left of the brigade line, which extended northerly about 320 yards, through a triangular strip of woods.

The second marker is on the east side of Maryland Route 65, north of Starke Avenue. From the marker:

(September 17, 1862.)

Patrick’s Brigade formed line north of Joseph Poffenberger’s at 5:30 A. M. and advanced on the east of the Hagerstwon Pike in support of Gibbon’s Brigade. It crossed the Pike and entered the West Woods at this point. The 80th New York was sent to support Battery B, 4th U. S. Artillery, 130 yards south of Miller’s barn, and the 23rd moved into the field west of this point. The 21st and 35th, in close support of Gibbon’s right, swept through the West Woods and open ground east of them in the direction of the Dunkard Church, being rejoined on the way by the 23rd. The three Regiments were checked and obliged to fall back to the cover of Miller’s barn and the rocky ledges south and west of it. After an interval of nearly an hour the three Regiments again advanced in support of Goodrich’s Brigade, Twelfth Corps, but were compelled to fall back. After the repulse of Sedgwick’s Division, the Brigade was withdrawn to a position east of the Pike in support of the Artillery of the First Corps.

The third marker is on the north side of Starke Avenue. From the marker:

(September 17, 1862.)

Early in the morning of the 17th, Patrick’s Brigade advanced through the North Woods and fields east of the Hagerstown Pike and into Miller’s Cornfield in support of Gibbon’s Brigade. When Gibbon’s right deployed on the plateau and in the woods west of the Pike, Patrick crossed the Pike 230 yards north of this and entered the West Woods in support, the 80th New York was withdrawn to support Battery B, 4th U. S. Artillery, 130 yards south of Miller’s barn, and the 23rd was sent to check a movement of the enemy in the fields west of the West Woods. The 21st and 35th, in close support of Gibbon’s right, swept through the West Woods, swung to the left flank of the enemy while charging the Battery, driving them in the direction of the Dunkard Church and east of the Pike. Rejoined by the 23rd, the line advanced to the Pike but was forced back to this ledge which was held until attacked on the right flank, when it was compelled to retire to the cover of Miller’s barn and the rock ledges south and west of it.

Battle of Fredericksburg

The regiment lost 7 men killed or mortally wounded, and 16 men wounded

Chancellorsville Campaign