This roster includes the known officers and enlisted men of the 120th Ohio Infantry (Three Years’ Service), organized by Field & Staff and Companies A through K. Information is drawn from 19th-century state adjutant general reports, the Official Records, and verified regimental histories.
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For an overview of this regiment’s organization, service, engagements, and casualties, see the regiment summary page.
Research This Regiment
If you’re researching ancestors in the 120th Ohio Infantry (Three Years’ Service), these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
Some details are incomplete in surviving primary sources.
Company A
Some details are incomplete in surviving primary sources.
Company B
Some details are incomplete in surviving primary sources.
Company C
Some details are incomplete in surviving primary sources.
Company D
Some details are incomplete in surviving primary sources.
Company E
Some details are incomplete in surviving primary sources.
Company F
Some details are incomplete in surviving primary sources.
Company G
Some details are incomplete in surviving primary sources.
Company H
Some details are incomplete in surviving primary sources.
Company I
Some details are incomplete in surviving primary sources.
Company K
Some details are incomplete in surviving primary sources.
Consolidations or Transfers
The 120th Ohio Infantry (Three Years’ Service) was consolidated with the 114th Ohio Infantry on November 27, 1864. Personnel remaining at that date were transferred to the new consolidated regiment.
Sources & Notes
- Official Records of the War of the Rebellion, Series I, relevant volumes and parts covering the Western Theater and Vicksburg Campaign.
- State Adjutant General Report for Ohio (various years, volumes covering 1862–1864).
- Dyer’s Compendium.
- Fox, “Regimental Losses in the American Civil War.”
- The Union Army, Federal Publishing Company, 1908, Volume 2.