21st Regiment, Illinois Infantry
The 21st Regiment, Illinois Infantry was organized at Mattoon, Illinois, and mustered in June 28, 1861. It mustered out at San Antonio, Texas, December 16, and discharged at Camp Butler, Illinois, January 18, 1866..
Companies in this Regiment with County of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
- Civil War Soldiers and Sailors System, (accessed 30 Dec. 2010) can be searched by soldier's name or by regiment; includes regimental rosters and additional history of the regiment.
- Illinois Civil War Rosters from the Adjutant General's Report, 21st Regiment (accessed 10 May 2011) includes rosters of all the regiments and information on the different companies in each regiment.
- Illinois State Archives - Illinois Civil War Muster and Descriptive Rolls Database (accessed 14 June 2011). Search by residence, unit, regiment, company or soldier.
- National Park Service, The Civil War Soldiers and Sailors System (accessed 4 January 2011).