The first two battalions of the 14th Illinois Cavalry were mustered into service at Peoria, Illinois, on January 7, 1863. The third battalion was mustered at Peoria on February 6, 1863.
The regiment was mustered out on July 31, 1865.
Total strength and casualties
The regiment suffered 2 officers and 23 enlisted men who were killed in action or who died of their wounds and 190 enlisted men who died of disease, for a total of 215 fatalities.[1]