Overview
The 9th Indiana Cavalry (121st Indiana Regiment) served as a Union cavalry regiment during the American Civil War. Organized in Indiana, it was mustered into Federal service on March 1, 1864. The regiment was part of the Western Theater and participated in operations across Tennessee, Alabama, Mississippi, and Louisiana. It is notable for its involvement in the defense against Confederate cavalry raids and for suffering significant losses in the Sulphur Branch Trestle engagement and the Sultana steamboat disaster.
Organization & Service
The 9th Indiana Cavalry (121st Indiana Regiment) was organized during the fall and winter of 1863–1864 and officially mustered in on March 1, 1864. The regiment departed Indiana for Nashville, Tennessee, on May 3, 1864, and was subsequently stationed at Pulaski, Tennessee, where it remained until November 23. During this period, the regiment participated in operations against Confederate cavalry commanders Nathan Bedford Forrest and Joseph Wheeler.
A detachment under Major Eli Lilly engaged at Sulphur Branch Trestle, Alabama, where the regiment suffered heavy losses—196 men killed, wounded, or missing. Following the defeat of Hood’s army at Nashville, the regiment fought at Franklin, Tennessee, against Forrest’s cavalry, incurring 26 casualties. The unit then encamped at Gravelly Springs, Alabama, until February 6, 1865, before being ordered to New Orleans. Upon arrival, the regiment was detached, turned over its horses, and sent to Vicksburg, Mississippi, where it was remounted and assigned to garrison duty in the interior of the state. The regiment returned to Vicksburg on May 22, 1865, and was mustered out on August 28, 1865.
On April 26, 1865, the regiment suffered a significant loss when 55 men—paroled prisoners of war—were killed in the explosion of the steamer Sultana. Survivors who escaped the disaster returned to Indianapolis in early May and were mustered out while under parole.
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
- Operations against Forrest and Wheeler (Tennessee and Alabama, 1864)
- Engagement at Sulphur Branch Trestle, Alabama (September 1864)
- Battle of Franklin, Tennessee (December 1864)
- Garrison duty in Mississippi (Spring 1865)
- Sultana steamboat disaster (April 1865)
Casualties
- Original strength: 1,267
- Gained by recruits: 67
- Total enrollment: 1,334
- Loss by death: 206
- Loss by desertion: 126
- Unaccounted for: 20
- Loss at Sulphur Branch Trestle: 196 killed, wounded, or missing
- Loss at Franklin: 26 killed, wounded, or captured
- Loss in Sultana disaster: 55 killed
Field Officers & Commanders
- Colonel George W. Jackson
- Colonel Eli Lilly
- Lieutenant Colonel Christian Beck
- Lieutenant Colonel Eli Lilly
- Lieutenant Colonel Virgil H. Lyon
- Major Eli Lilly
- Major Virgil H. Lyon
- Major Patrick Carland
- Major William R. Walls
- Major Nathaniel J. Owings
- Major James R. Nation
Regimental Roster
The full roster of the 9th Indiana Cavalry (121st Indiana Regiment) includes officers and enlisted men who served during its term of service. For genealogical research and detailed information about individual soldiers, please consult the regiment’s complete roster.
The roster is available at the 9th Indiana Cavalry (121st Indiana Regiment) Roster page.
Sources & References
- Official Records of the Union and Confederate Armies, Series I, Vol. XXXIX, XLV, XLIX
- Indiana 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. 3