This roster includes the known officers and enlisted men of the 121st New York Infantry, organized by Field & Staff and companies when available. 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 121st New York Infantry, these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
- Colonel Richard Franchot
- Colonel Emory Upton
- Colonel Egbert Olcott
- Lieutenant Colonel Charles H. Clark
- Lieutenant Colonel Egbert Olcott
- Lieutenant Colonel Henry M. Galpin
- Lieutenant Colonel James W. Cronkhite
- Lieutenant Colonel John S. Kidder
- Major Egbert Olcott
- Major Andrew E. Mather
- Major Henry M. Galpin
- Major James W. Cronkhite
- Major John S. Kidder
Detailed company-level roster entries are not included in the currently supplied source text.
Sources & Notes
- Official Records of the War of the Rebellion
- New York State Adjutant General reports
- The Union Army, Federal Publishing Company, 1908
- Regimental histories published in the 19th century
