This roster includes the known officers and enlisted men of the 12th Indiana 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 12th Indiana Infantry (Three Years’ Service), these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
- Colonel John M. Wallace – Resigned; succeeded by William H. Link.
- Colonel William H. Link – Promoted from lieutenant colonel; mortally wounded at the battle of Richmond, Ky.
- Colonel Reuben Williams – Promoted from lieutenant colonel.
- Lieutenant Colonel William H. Link – Promoted to colonel.
- Lieutenant Colonel Reuben Williams – Promoted to colonel.
- Lieutenant Colonel Solomon D. Kempton – Promoted from major.
- Lieutenant Colonel James Goodnow – Promoted from major.
- Lieutenant Colonel Elbert D. Baldwin – Promoted from major.
- Lieutenant Colonel George M. Trotter – Promoted from major.
- Major George Humphreys – Promoted to lieutenant colonel.
- Major Solomon D. Kempton – Promoted to lieutenant colonel.
- Major James Goodnow – Promoted to lieutenant colonel.
- Major Elbert D. Baldwin – Promoted to lieutenant colonel.
- Major George M. Trotter – Promoted to lieutenant colonel.
- Major Samuel Boughter – Service noted in regimental records.
- Major Henry Hubler – Promoted from captain, Company E.
Company A
Records for this company are incomplete in the surviving state adjutant general reports.
Company B
Records for this company are incomplete in the surviving state adjutant general reports.
Company C
Records for this company are incomplete in the surviving state adjutant general reports.
Company D
Records for this company are incomplete in the surviving state adjutant general reports.
Company E
Records for this company are incomplete in the surviving state adjutant general reports.
Company F
Records for this company are incomplete in the surviving state adjutant general reports.
Company G
Records for this company are incomplete in the surviving state adjutant general reports.
Company H
Records for this company are incomplete in the surviving state adjutant general reports.
Company I
Records for this company are incomplete in the surviving state adjutant general reports.
Company K
Records for this company are incomplete in the surviving state adjutant general reports.
Non-Commissioned Staff
Some details are incomplete in surviving primary sources.
Unassigned Recruits
Some details are incomplete in surviving primary sources.
Consolidations or Transfers
After the regiment was mustered out in June 1865, remaining recruits and drafted men were transferred to the 48th and 59th Indiana Infantry regiments.
Sources & Notes
- Official Records of the War of the Rebellion, Series I, various volumes and parts.
- State Adjutant General Report for Indiana (years 1862–1865; volumes and pages as available).
- Dyer’s Compendium.
- Fox, “Regimental Losses in the American Civil War.”
- The Union Army, Federal Publishing Company, 1908, Volume 3.