This roster includes the known officers and enlisted men of the 45th Illinois 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 45th Illinois Infantry, these resources may provide additional historical detail, including regimental histories and Civil War reference works.
Field & Staff
- Colonel: John Eugene Smith
- Colonel: Jasper A. Maltby
- Lieutenant Colonel: Charles C. Campbell
- Lieutenant Colonel: Jasper A. Maltby
- Lieutenant Colonel: Melancthon Smith
- Lieutenant Colonel: Robert P. Sealy
- Lieutenant Colonel: John O. Duer
- Major: Melancthon Smith
- Major: Luther H. Cowan
- Major: Leander B. Fisk
- Major: John O. Duer
- Major: James J. Palmer
Detailed company-level roster entries are not included in the currently supplied source text.
Sources & Notes
- Official Records of the War of the Rebellion
- Illinois Adjutant General’s Report
- Dyer’s Compendium
- Contemporary regimental histories and wartime reports