5th New York

5th New York
Unit name	5th New York
Country	United States
Allegiance	Union
Branch	United States Army
Type	Infantry
Dates	1861–1865
Notable commanders	George B. McClellan, Joseph Hooker, George G. Meade

5th New York The 5th New York was an infantry regiment raised in New York during the American Civil War that served in multiple campaigns of the Army of the Potomac, participating in operations under commanders including George B. McClellan, Joseph Hooker, and George G. Meade. The regiment engaged in major battles of the Eastern Theater, linking its service to actions across Virginia, Maryland, and Pennsylvania, and intersecting with units such as the II Corps, V Corps, and elements of the Army of Virginia.

Formation and Organization

The regiment was organized in New York City during the early mobilization following Fort Sumter, drawing volunteers from boroughs including Manhattan, Brooklyn, and Queens. Recruitment and mustering occurred amid calls from President Abraham Lincoln and state authorities including Gouverneur Morris-era political structures and figures like Horatio Seymour and New York State officials. Officers commissioned came from civic and militia backgrounds tied to institutions such as the National Guard of New York and civic societies in Lower Manhattan, with initial training conducted near Fort Hamilton and assembly points like Castle Garden. The regiment was assigned to brigades that reported through divisions commanded by leaders including Irvin McDowell and later integrated into corps under McClellan and Hooker.

Service History

After mustering, the regiment entered Federal service and moved to the front lines of the Eastern Theater, joining campaigns during the Peninsula Campaign, the Seven Days Battles, and the subsequent northern campaigns culminating at Gettysburg. It served in winter quarters during the Winter of 1862–63 near Falmouth, Virginia and participated in the Chancellorsville Campaign under the operational direction of Joseph Hooker. During the Gettysburg Campaign, regimental elements marched north with the Army of the Potomac and later joined the Bristoe Campaign and the Mine Run Campaign. In 1864 the regiment was involved in operations during the Overland Campaign under Ulysses S. Grant and fought in the Wilderness and Spotsylvania Court House, followed by the Siege of Petersburg where it remained until the campaign concluded with the Appomattox Campaign and the surrender of Robert E. Lee at Appomattox Court House.

Notable Engagements and Battles

The regiment saw action at the Battle of Fair Oaks (Seven Pines), partook in combat during the Seven Days Battles including Malvern Hill, engaged at Antietam during the Maryland operations, and fought at Fredericksburg during the Fredericksburg Campaign. During the Chancellorsville Campaign it encountered forces led by Robert E. Lee and Stonewall Jackson, and at Gettysburg the regiment held lines and counterattacked against Confederate elements under corps commanders such as James Longstreet and Richard S. Ewell. Later, it endured heavy fighting in the Overland Campaign against Confederate generals A. P. Hill and J. E. B. Stuart, and participated in the trench warfare that characterized the Siege of Petersburg, including actions near Hatcher's Run and assaults tied to the Third Battle of Petersburg that preceded Lee's surrender.

Commanders and Personnel

Leadership of the regiment included officers who coordinated with higher command echelons such as George B. McClellan, Joseph Hooker, and George G. Meade, and subordinate commanders who had served in state militia organizations and federal volunteer brigades. Company officers often had prior service in units associated with figures like Winfield Scott, Nathaniel P. Banks, and John C. Frémont in early war mobilizations. Enlisted men came from neighborhoods connected to leaders like Fernando Wood and civic institutions including Tammany Hall and labor groups active in New York City politics. The regiment's roster intersected with veterans who later engaged in Reconstruction-era politics, veterans' organizations like the Grand Army of the Republic, and memorial associations formed in cities such as Albany, New York and Rochester, New York.

Casualties and Losses

Throughout its service the regiment sustained casualties in major battles including Antietam, Fredericksburg, Chancellorsville, Gettysburg, and the Wilderness, with losses attributed to musketry, artillery, and siege operations during the Siege of Petersburg. Disease in camp and on campaign claimed additional lives, linked to epidemics and conditions similar to those documented by surgeons like Jonathan Letterman and medical reforms promoted by figures such as Dorothea Dix and Clara Barton. Casualty figures affected unit strength during actions coordinated with units under commanders like Daniel Sickles and Winfield Hancock, prompting periodic consolidation and recruitment to maintain effectiveness in corps maneuvers during campaigns under Ulysses S. Grant.

Legacy and Commemoration

The regiment's service contributed to veteran memory preserved through reunions, monument dedications at battlefields including the Gettysburg Battlefield and Petersburg National Battlefield, and entries in regimental histories alongside state compilations maintained by the New York State Museum and archives such as the New-York Historical Society. Descendants and historical societies commemorated actions with memorials in Green-Wood Cemetery and civic monuments in New York City and county seats like Schenectady, New York and Troy, New York. Scholarship on the regiment appears in works about the Army of the Potomac, regimental studies of the Eastern Theater, and compilations referencing leaders such as George Meade and Ulysses S. Grant, while reenactor groups and preservationists continue campaigns tied to the Civil War Trust and battlefield conservation by organizations including American Battlefield Trust.

Category:Units and formations of the Union Army from New York (state)