United States Regiments & Batteries > New YorkInfantry

“Ontario Regiment”

The 33rd New York Volunteer Infantry Regiment lost 3 officers and 44 enlisted men killed and mortally wounded and 105 enlisted men to disease during the Civil War.

Organized at Elmira, N. Y.
July 3 Mustered in effective May 22 for two years service under Colonel Robert F. Taylor, Lieutenant Colonel Calvin Walker and Major Robert J. Mann
July 8 Moved to Washington, D. C. Duty in the Defenses of Washington, D. C. at Camp Granger
August Moved to Camp Lyon and attached to W. F. Smith’s Brigade, Division of the Potomac
September Construction of Fort Ethan Allen and Fort Marcy
September 25 Attached to 2nd Brigade, W. F. Smith’s Division, Army of the Potomac
September 29 Skirmish near Lewinsville
October 3 Lieutenant Colonel Walker discharged for physical disability. Captain Joseph W. Corning of Company B promoted to lieutenant colonel
January 24 Major Mann was discharged and Captain John S. Platner of Company H was promoted to major
March Attached to 3rd Brigade, 2nd Division, 4th Army Corps, Army of the Potomac
March 10-15 Advance on Manassas, Va.
March 23 Embarked for the Peninsula, Va.
April 5 Near Lee’s Mills
April 5-May 4 Siege of Yorktown
April 16 Lee’s Mills near Burnt Chimneys
May Attached to 3rd Brigade, 2nd Division, 6th Army Corps
May 5
Battle of Williamsburg

Lieutenant George W. Brown and 2 men were mortally wounded and 7 men wounded

May 23-24

The regiment lost 1 man mortally wounded and 6 men wounded in the storming of Fort Magruder

June 25-July 1
Seven days before Richmond

Lieutenant Church and 6 men were killed, 1 officer and 8 men wounded, and 1 officer and 19 men missing

June 27 Gaines’ Mill, Garnett’s Farm
June 28 Garnett’s and Golding’s Farms
June 29 Savage Station
June 30 White Oak Swamp and Glendale
July 1 Malvern Hill
July-August At Harrison’s Landing
August 16-28 Movement to Fortress Monroe, then to Centreville, under command of Lieutenant Colonel Corning
August 28-31 In works at Centreville
September 1 Cover Pope’s retreat to Fairfax Court House
September 6-22 Maryland Campaign
September 14 Crampton’s Pass, South Mountain
September 16-17
Battle of Antietam

The regiment lost 9 men killed or mortally wounded and 3 officers and 35 men wounded. Sergeant Major George W. Bassett was among the killed.

From the War Department markers (double marker number 74) on the Antietam battlefield:

Irwin’s Brigade came on the field about noon of the 17th, and formed across the Smoketown Road in rear of a line of Artillery.

After an unsuccessful attempt to penetrate the Confederate line south of the Dunkard Church, the Brigade rallied behind the ridge east of the Hagerstown Pike and between it and Mumma’s Lane, the left of the Brigade resting a few yards west of the lane, where it was exposed to a severe fire of Artillery and Sharpshooters.

About 5 P.M., the 7th Maine, on the left of the Brigade, crossed Mumma’s Lane, moved obliquely across the front of Brook’s Brigade, charged over the Bloody Lane at this point, dispersed the Confederates in its front and in the orchard on its left and reached the low ground North of Piper’s Barn, when the enemy from behind the stone fence on the Hagerstown Pike and the hill adjoining poured a severe fire on its right flank and front.

The regiment then obliqued to the left, passed through an opening in the fence into the orchard and to within 70 yards of Piper’s House, here it was met by a withering fire from a column of the enemy moving down the hill east of the house and driven back through the orchard with great loss.

It reformed a short distance east of this point and returned to the position from which it had advanced.

At noon of the 18th, the Brigade was relieved by Cochrane’s Brigade of Couch’s Division.

From the War Department marker (number 75) on the Antietam battlefield:

Irwin’s Brigade reached the field about noon of the 17th, formed line across the road at this point, and charged through the Batteries and across the fields in their front to check the advance of the Confederates from the West Woods. The direction of its advance was south of the Dunkard Church and, when its right Regiments, the 33d and 77th New York, were nearly abreast the Church, they received such a destructive fire on their right and rear as compelled them to retire to the cover of the ridge in front of the Church, the remainder of the Brigade forming on their left. Late in the day the 7th Maine charged across the Bloody Lane to Piper’s Barn and was repulsed with great loss.

About noon of the 18th the Brigade was relieved by Cochrane’s Brigade of Couch’s Division, and withdrawn to the rear.

September 18- October 29 Duty in Maryland
October Company D disbanded and a new Company D of recruits added
October 29-November 19 Movement to Falmouth, Va.
December 12-15
Battle of Fredericksburg
January 20-24 Assigned to 6 Corps, 2 Division, 1 Brigade.
January 20-24 “Mud March”
February-April At Falmouth
March Assigned to 6th Corps, 2nd Division, 3rd Brigade.
April 27-May 6 Chancellorsville Campaign
April 29-May 2 Operations about Franklin’s Crossing
May 3

The regiment lost 1 officer and 26 men killed or mortally wounded, 4 officers and 116 men wounded, and 1 officer and 73 men missing in the charge on Marye’s Heights, including Captains Cole, Root and Warford and Lieutenant Byrne, all wounded.

May 3-4
Salem Heights
May 4 Banks’ Ford
May 14 Three years men transferred to 49th Regiment New York Infantry
June 2 Mustered out, expiration of term, at Geneva, New York under Colonel Taylor, Lieutenant Colonel Joseph Corning and Major John Platner