The regiment lost 1 officer and 31 enlisted men killed and mortally wounded and 1 officer and 166 enlisted men from disease, for a total of 199 fatalities.[1]
^http://www.civilwararchive.com/Unreghst/unilcav1.htm#4th The Civil War Archive website after Dyer, Frederick Henry. A Compendium of the War of the Rebellion. 3 vols. New York: Thomas Yoseloff, 1959.
^http://www.rootsweb.com/~ilcivilw/f&s/cav004-fs.htm Illinois in the Cvil war website after Illinois Adjutant General's muster rolls
References
"A Horse to Live and a Greyhound to Die: Early Civil War Experiences of Robert and James Thompson" by Bruce Makoto Arnold
Home of the 4th Illinois Cavalry by: Ronald Roy Wallace