25th Ohio Infantry ​in the American Civil War

Overview

The 25th Ohio Infantry (Three Years’ Service) was an infantry regiment organized at Columbus, Ohio, in June and July 1861 for Federal service during the American Civil War. Serving on the Union side, the regiment was active in both the Eastern and Southern theaters, participating in numerous campaigns and engagements. Notably, Company D was detached in March 1862 to become the 12th Ohio Battery, and a new Company D was organized in October 1864.

The regiment is recognized for its service in major battles such as McDowell, Cross Keys, Second Bull Run, Chancellorsville, Gettysburg, Fort Wagner, and Honey Hill, as well as for its extended service, with the final mustering out occurring in June 1866.

Organization & Service

The 25th Ohio Infantry (Three Years’ Service) was mustered into service at Columbus, Ohio, in June and July 1861. Initially, the regiment was attached to various brigades and divisions within the Army of the Potomac and later the Department of the South. Company D was permanently detached on March 17, 1862, to form the 12th Ohio Battery. In October 1864, a new Company D was organized and assigned to the regiment for one year’s service.

The regiment participated in early operations in western Virginia, including actions at Cheat Mountain, Greenbrier, Camp Allegheny, Huntersville, and Monterey. It was engaged at McDowell and Cross Keys during the 1862 Shenandoah Valley Campaign. The 25th Ohio fought at Freeman’s Ford and the Second Battle of Bull Run, then participated in the Chancellorsville and Gettysburg campaigns. Afterward, the regiment was transferred to operations in the Department of the South, seeing action at Fort Wagner, Honey Hill, Deveaux Neck, Gregory’s Landing, and during the occupation of Charleston. The original members, except veterans, were mustered out July 16, 1864; Company D was mustered out October 16, 1865. The remaining veterans and recruits continued in service until June 18, 1866, when the regiment was mustered out by order of the War Department.

Engagements & Campaigns

• Cheat Mountain
• Greenbrier
• Camp Allegheny
• Huntersville
• Monterey
• McDowell
• Cross Keys
• Freeman’s Ford
• Second Battle of Bull Run
• Chancellorsville
• Gettysburg
• Hagerstown
• Fort Wagner
• Honey Hill
• Deveaux Neck
• Gregory’s Landing
• Occupation of Charleston
• Swift Creek
• Other minor actions

Casualties

• Camp Allegheny: 9 killed, 75 severely wounded
• McDowell: 9 killed, 56 wounded
• Cross Keys: 8 killed, 54 wounded, 2 missing
• Second Battle of Bull Run: 10 killed, 78 wounded, 22 missing
• Chancellorsville: 174 total casualties out of 444 engaged
• Gettysburg: 20 killed, 113 wounded, 50 missing (out of 220 engaged)
• Honey Hill: 150 killed and wounded (including 16 commissioned officers)
• Deveaux Neck and Gregory’s Landing: 54 killed and wounded

Some details are incomplete in surviving primary sources.

Field Officers & Commanders

• Colonel James A. Jones
• Colonel William P. Richardson
• Lieutenant Colonel George Webster
• Lieutenant Colonel James F. Charlesworth
• Lieutenant Colonel Jeremiah Williams
• Lieutenant Colonel Nathaniel Haughton
• Major John W. Bowlus
• Major Carrington E. Randall
• Major Edward C. Culp

Regimental Roster

The full roster of the 25th Ohio Infantry (Three Years’ Service), including officers and enlisted men, is available for genealogical and historical research. This roster provides names, ranks, and service details for those who served in the regiment.

To view the complete roster, visit the 25th Ohio Infantry (Three Years’ Service) Roster page.

Sources & References

• Official Records of the Union and Confederate Armies, Series I, various volumes and parts
• Ohio Roster Commission, Official Roster of the Soldiers of the State of Ohio in the War of the Rebellion
• 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, Volume 2