23rd New York Infantry Regiment "Southern Tier Regiment"

The 23rd lost 17 enlisted men killed and mortally wounded and 2 officers and 53 enlisted men to disease.

Timeline of the 23rd New York Infantry Regiment

May 10, 1861	Organized at Elmira, N.Y.
July 2	Mustered in for two year service under Colonel Henry C. Hoffman, Lieutenant Colonel Nirom Crane and Major William M. Gregg
July 5	Left State for Washington, D.C for duty in the Defenses of Washington, D. C.
July 9	Camp at Meridian Hill
July 23	To Fort Runyon
August 4	Attached to Hunter's Brigade, Division of the Potomac
August 5	To Arlington Heights
August 27-28	Action at Ball's Cross Roads, Va. (Companies I and K) The regiment lost 1 enlisted man killed and 3 wounded
August 31	Munson's Hill (Companies I and K) The regiment lost 4 wounded
October	Attached to Wadsworth's Brigade, McDowell's Division, Army of the Potomac
March, 1862	Attached to 2nd Brigade, King's 3rd Division, McDowell's 1st Army Corps, Army of the Potomac
March 10-15	Advance on Manassas, Va.
March 16	At Upton's Hill
April	Attached to 2nd Brigade, King's Division, Dept. of the Rappahannock
April 9-19	McDowell's advance on Falmouth, Va.
April 20	Duty at Fredericksburg
May 7	Cross the Rapahannock and occupy Fredericksburg
May 18	Skirmish on Bowling Greek Road
May 25-29	McDowell's advance on Richmond
May 25	Private William March of Company A was killed when the Fredericksburg arsenal was blown up
May 27	Advanced to Massaponax Creek, seven miles south of Fredericksburg, before returning to town the next day
May 29	To Catlett's Station
June	Attached to 3rd Brigade, 1st Division, 3rd Corps, Pope's Army of Virginia
June 1-21	Operations against Jackson
June 1	At Haymarket
June 6	To Warrenton
June 8	To Falmouth
June 9	Camped at Elk Run
June 24	Returned to Falmouth
June 27	To Camp Rufus King on Belle Plain Road
July 24-27	Reconnaissance to Orange Court House. Marched through Fredericksburg and west on the Wilderness Road towards Gordonsville, camping 3 miles from Orange Court House
July 26	Returned to Falmouth
July 28	Changed camp to riverbank, with companies assigned to guard duty in Frericksburg. Company assigned to the railroad bridge and company K to the depot.
August 10	Marched ten miles to Orange Court House
August 11	Crossed the Rapidan at Ely's Ford
August 12	To Cedar Mountain
August 16	Moved to the Cedar Mountain battlefield
August 19	To Culpepper
August 16-September 2	Pope's Campaign in Northern Virginia
August 21-22	Fords of the Rappahannock One man was killed, cut in half by an artillery shot
August 23-24	Sulphur Springs
August 28	Battle of Gainesville The regiment was on the extreme left of the line, and not engaged
August 29	Battle of Groveton
August 30	Battle of 2nd Bull Run The regiment lost 4 enlisted men killed or mortally wounded, 2 officers and 15 enlisted men wounded, and 75 men captured or missing in attacks on the railroad embankment
September	Attached to 3rd Brigade, 1st Division, 1st Army Corps, Army of the Potomac
September 6-22	Maryland Campaign
September 14	Battle of South Mountain The regiment lost six enlisted men wounded
September 16-17	Battle of Antietam The regiment lost 10 enlisted men killed or mortally wounded, 1 officer and 29 enlisted men wounded, and 2 enlisted men missing or captured
September - October	Duty in Maryland
October 29- November 19	Movement to Falmouth
December 12-15	Battle of Fredericksburg The regiment lost 4 enlisted men killed or mortally wounded and 14 enlisted men captured
January, 1863	Assigned to provost duty at Aquia Creek attached to Provost Marshal, General Patrick's Command, Army of the Potomac
April 27-May 6	Chancellorsville Campaign
May 11 - 18	Embarked for New York on U.S. Mail steamer John Brooks, landing at Washington and moving by rail to Baltimore, Harrisburg and Williamsport to Elmira.
May 22, 1863	Mustered out, expiration of term, under Colonel Hoffman, Lieutenant Colonel Crane and Major Gregg. Three years men transferred to 80th Regiment New York Infantry.