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21st Illinois Volunteer Infantry Regiment

The 21st Regiment Illinois Volunteer Infantry was a militia infantry regiment that served in the Union Army during the American Civil War.

21st Regiment Illinois Volunteer Infantry
Flag of Illinois.svg
Illinois state flag
Active June 28, 1861, to December 16, 1865
Country United States
Allegiance Union
Branch Infantry



The 21st Illinois Infantry was organized at Mattoon, Illinois and mustered into Federal service on June 28, 1861.

The regiment was mustered out on December 16, 1865.

Total strength and casualtiesEdit

The regiment suffered 1 officer and 51 enlisted men who were killed in action or who died of their wounds and 2 officers and 127 enlisted men who died of disease, for a total of 181 fatalities.[1]


See alsoEdit


  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. - retrieved June 25, 2007.
  2. ^ Illinois in the Civil War website after Illinois Adjutant General's muster rolls - retrieved June 25, 2007.