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7th Regiment Illinois Volunteer Infantry (3 years)
Illinois flag
Active July 25, 1861 to July 9, 1865
Country United States
Allegiance Union
Branch Infantry
Engagements Fort Henry
Fort Donelson
Battle of Shiloh
Battle of Corinth
Battle of Allatoona Pass
Battle of Bentonville

The 7th Regiment Illinois Volunteer Infantry (3 years) was an infantry regiment that served in the Union Army during the American Civil War.


The 7th Illinois Infantry was mustered at Cairo, Illinois on April 25, 1861 from the personnel of the 7th Illinois Volunteer Infantry Regiment (3 Months).

The regiment mustered out of service on July 9, 1865.

Total strength and casualties[]

The regiment suffered 8 officers and 81 enlisted men who were killed in action or who died of their wounds and 3 officers and 174 enlisted men who died of disease, for a total of 266 fatalities.[1]


  • Colonel John Cook - Promoted to brigadier general March 21, 1862.
  • Colonel Richard Rowett - mustered out with regiment[2]

See also[]

  • List of Illinois Civil War Units
  • Illinois in the American Civil War


  1. The Civil War Archive website after Dyer, Frederick Henry. A Compendium of the War of the Rebellion. 3 vols. New York: Thomas Yoseloff, 1959.
  2. Illinois in the Civil war website after Illinois Adjutant General's muster rolls


pl:7 Ochotniczy Pułk Piechoty Illinois (3 lata)