Overview
The 121st Indiana Regiment, also known as the 9th Indiana Cavalry, served as a Union cavalry regiment during the American Civil War. Organized in Indiana during the fall and winter of 1863–64, the regiment was mustered into service on March 1, 1864. It was primarily active in the Western Theater, participating in operations across Tennessee, Alabama, Mississippi, and Louisiana. The unit is notable for its involvement in actions against Confederate cavalry leaders and for suffering significant losses in the Sultana steamboat disaster.
Organization & Service
The 121st Indiana Regiment (9th Indiana Cavalry) was organized in Indiana and mustered in on March 1, 1864. The regiment departed Indiana on May 3, 1864, heading first to Nashville, Tennessee, and then to Pulaski, Tennessee, where it remained until November 23. During this period, the regiment took part 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 Confederate General Hood at Nashville, the regiment fought at Franklin, Tennessee, against Forrest’s cavalry, incurring 26 casualties. The regiment then encamped at Gravelly Springs, Alabama, until February 6, 1865, before being ordered to New Orleans. Upon arrival, the unit was temporarily dismounted 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 of the disaster returned to Indianapolis and were mustered out while still 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 at Franklin, Tennessee (late 1864)
- Garrison duty in Mississippi (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 121st Indiana Regiment (9th Indiana Cavalry), including officers and enlisted men, is available for genealogical and historical research. This roster provides details on service records, enlistment, and other pertinent information.
To view the complete roster, visit the 121st Indiana Regiment (9th Indiana Cavalry) Roster page.
Sources & References
- The War of the Rebellion: Official Records of the Union and Confederate Armies (O.R.), Series I, Volumes relevant to Western Theater operations, 1864–1865
- 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, Vol. 3 (Federal Publishing Company, 1908)