Overview
The 110th New York Infantry (Three Years’ Service) was an infantry regiment organized in Oswego County, New York, for service in the Union Army during the American Civil War. The regiment was mustered into United States service at Oswego on August 25, 1862, for a three-year term. Serving primarily in the Department of the Gulf, the 110th New York participated in several significant campaigns and endured extended duty in the southern climate, which contributed to a high rate of disease-related casualties.
Organization & Service
The 110th New York Infantry was organized at Oswego, New York, and mustered in for three years’ service on August 25, 1862. The regiment departed New York on August 29, 1862, and was stationed in Baltimore, Maryland, until November of that year. In November 1862, the regiment was ordered to New Orleans, Louisiana, where it became part of Emory’s Division, 19th Army Corps, Department of the Gulf.
The regiment’s first engagement under fire occurred at Fort Bisland in April 1863. Shortly after, at Franklin, Louisiana, the regiment suffered 12 killed and wounded. The 110th New York took part in the siege of Port Hudson, Louisiana, participating in the major assault on June 14, 1863, and sustaining a total of 37 killed, wounded, and missing during the siege. Its final major engagement was at Vermillion Bayou, Louisiana, in November 1863, where it lost 6 killed and wounded. In February 1864, the regiment was ordered to Fort Jefferson, Florida, where it remained on duty until the end of its service. The 110th New York Infantry was mustered out at Albany, New York, under the command of Colonel Charles Hamilton on August 25, 1865.
Research This Regiment Further
If you’d like to explore this unit’s history in more depth, regimental histories and Civil War reference works offer valuable detail.
Engagements & Campaigns
- Fort Bisland (April 1863)
- Franklin, Louisiana (April 1863)
- Siege of Port Hudson (May–July 1863), including assault of June 14
- Vermillion Bayou, Louisiana (November 1863)
- Garrison duty at Fort Jefferson, Florida (February 1864–August 1865)
Casualties
- Killed or mortally wounded: 2 officers, 14 enlisted men
- Died of disease and other causes: 3 officers, 192 enlisted men
- Total deaths: 211
The high number of deaths from disease reflects the regiment’s prolonged service in the southern climate.
Field Officers & Commanders
- Colonel DeWitt C. Littlejohn
- Colonel Clinton H. Sage
- Colonel Charles Hamilton
- Lieutenant Colonel Clinton H. Sage
- Lieutenant Colonel Warren D. Smith
- Major Charles Hamilton
- Major Henry C. Devendorf
Regimental Roster
The complete roster of the 110th New York Infantry (Three Years’ Service), including officers and enlisted men, is available on the regiment’s roster page. This resource provides names, ranks, and additional service details valuable for genealogical and historical research.
To view the full roster, visit the 110th New York Infantry (Three Years’ Service) Roster page.
Sources & References
- Official Records of the Union and Confederate Armies, Series I, Vol. XV, XXVI, XXXIV
- New York State Adjutant General’s Report
- Dyer, Frederick H. A Compendium of the War of the Rebellion
- Fox, William F. Regimental Losses in the American Civil War
- The Union Army, Federal Publishing Company, 1908, Vol. 2
