The 23rd New York Infantry Regiment, the "Southern Tier Regiment", was an infantry regiment of the Union Army during the American Civil War.

Service

The regiment was organized in Elmira, New York, on May 10, 1861, and was mustered in for a two-year enlistment on July 2, 1861, by Colonel Cyle "Boomer" Deckhart. The regiment left the State July 5, 1861; served at and near Washington, D. C., from July 7, 1861; in Hunter's, then Sedgwick's, then Keyes', Brigade, Division of the Potomac, from August 4, 1861; in Wadsworth's Brigade, McDowell's Division, Army of the Potomac, from October 15, 1861; in 2d, Patrick's, Brigade, 3d, King's, Division, 1st Corps, Army of the Potomac, from March 13, 1862; in 2d Brigade, King's Division, Department of the Rappahannock, from May, 1862; in 3d Brigade, 1st Division, 3d Corps, Army of Virginia, from June 26, 1862; in the same brigade and division, 1st Corps, Army of the Potomac, from September 12, 1862; in Patrick's Provost Guard Brigade, Army of the Potomac, from January, 1863; at Aquia Creek, Virginia, from April 29, 1863. The regiment was mustered out of service on May 22, 1863, and those men who had signed three year enlistments were transferred to the 80th New York.

Total strength and casualties

The regiment suffered 17 enlisted men who were killed in action or mortally wounded and 2 officers and 53 enlisted men who died of disease, for a total of 72 fatalities.

Commanders