Overview
The 1st Ohio Cavalry (Three Years’ Service) was a Union regiment organized at Camp Chase, Ohio, between August 17 and October 5, 1861. Serving in the cavalry branch, it was mustered for three years’ service and participated in numerous campaigns across the Western and Southern theaters. The regiment is noted for its early deployment to western Virginia, extensive operations in Kentucky, Tennessee, Alabama, and Georgia, and for reenlisting as a veteran regiment in 1864.
This unit served with distinction in several major engagements, including Stone’s River, Chickamauga, and the Atlanta Campaign, and was among the first Union cavalry regiments to enter the Western Department. The 1st Ohio Cavalry mustered out in September 1865 after garrison duty in Georgia and South Carolina.
Organization & Service
The 1st Ohio Cavalry (Three Years’ Service) was organized at Camp Chase, Ohio, from August 17 to October 5, 1861. Companies A and C were detached early and sent to western Virginia, later serving in the Shenandoah Valley under Shields, Banks, and Kilpatrick. The main body of the regiment moved to Louisville, Kentucky, in December 1861, becoming the first cavalry regiment to enter that department.
The regiment participated in the advance on Corinth, Mississippi, engaging in frequent skirmishes and pursuing Confederate forces after the city’s evacuation. It was actively involved in scouting, anti-guerrilla operations, and several sharp engagements, including a notable action near Russellville, Alabama, against Roddey’s Confederate command. In July 1862, elements of the regiment fought at Courtland, Alabama, where some members were captured.
Returning to Kentucky with Buell’s army, the regiment took part in actions near Bardstown and on the Perryville road. At the Battle of Stone’s River (December 31, 1862 – January 2, 1863), the 1st Ohio Cavalry made a significant charge and remained engaged throughout the battle. The regiment fought at Chickamauga in September 1863, suffering severe losses, and was subsequently stationed at Washington, Tennessee, to guard the Tennessee River. There, it engaged Wheeler’s Confederate cavalry in a costly action.
In late 1863 and early 1864, the regiment participated in raids and engagements at Cleveland and Calhoun, Tennessee. After reenlisting as a veteran regiment, it returned from furlough in early 1864. In May, the regiment crossed the Tennessee River at Decatur and fought at Moulton, Alabama, defeating Roddey’s command. It then joined the Atlanta Campaign, performing flank protection and covering movements, and distinguished itself at Lovejoy’s Station.
In April 1865, the regiment charged a Confederate battery at Ebenezer Church and participated in the capture of Selma, Alabama. It advanced through Montgomery and Columbus, Georgia, taking part in the night assault on Columbus and capturing prisoners and artillery. The regiment remained on garrison duty in Georgia and South Carolina until mustering out: Companies A–K and M on September 13, 1865, at Hilton Head, South Carolina, and Company L on September 26, 1865, at Nashville, Tennessee.
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
- Western Virginia operations (1861–1862)
- Advance on Corinth, Mississippi (April–May 1862)
- Skirmishes near Booneville, Mississippi (May 1862)
- Action near Russellville, Alabama
- Engagement at Courtland, Alabama (July 1862)
- Operations in Kentucky (October 1862)
- Battle of Perryville (October 1862)
- Battle of Stone’s River (December 31, 1862 – January 2, 1863)
- Battle of Chickamauga (September 19–20, 1863)
- Engagement at Washington, Tennessee
- Raids and actions at Cleveland and Calhoun, Tennessee (late 1863)
- Engagement at Moulton, Alabama (May 1864)
- Atlanta Campaign (1864), including Lovejoy’s Station
- Engagement at Ebenezer Church, Alabama (April 1865)
- Capture of Selma, Alabama (April 2, 1865)
- Advance through Montgomery and Columbus, Georgia (April 1865)
- Night assault on Columbus, Georgia (April 16, 1865)
Casualties
According to official reports, the 1st Ohio Cavalry (Three Years’ Service) suffered significant losses in several major engagements. The regiment lost about 20 men killed and wounded at Moulton, Alabama, and 50 men at Lovejoy’s Station. In various actions, including Chickamauga and Stone’s River, losses were described as severe. Exact total casualty figures for the regiment are not consistently reported in primary sources.
Field Officers & Commanders
- Colonel Owen P. Ransom
- Colonel Minor Milliken
- Colonel Beroth B. Eggleston
- Lieutenant Colonel Thomas C. H. Smith
- Lieutenant Colonel James Laughlin
- Lieutenant Colonel Valentine Cupp
- Lieutenant Colonel Thomas J. Pattin
- Lieutenant Colonel Stephen C. Writer
- Major Michael W. Smith
- Major Erasmus B. Dennison
- Major David A. B. Moore
- Major James N. Scott
- Major John C. Frankeberger
- Major William McBurney
Regimental Roster
The complete roster of the 1st Ohio Cavalry (Three Years’ Service), including officers and enlisted men, is available for genealogical and historical research. The roster provides details on company assignments, ranks, and service records.
To view the full roster, visit the 1st Ohio Cavalry (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, Vol. 9 (Cavalry)
- Dyer, Frederick H., A Compendium of the War of the Rebellion (1908)
- Fox, William F., Regimental Losses in the American Civil War (1889)
- The Union Army, Vol. 2, Federal Publishing Company (1908)