The 11th Regiment, Illinois Cavalry was organized on December 20, 1861 in Peoria, Peoria County, Illinois under the command of Col. Robert Green Ingersoll and served in the Western Theater in the Army of the Tennessee. It was later commanded by Cols. Lucien H. Kerr from December 1862 to December 19, 1864 and Otto Funke from December 20, 1864 to September 30, 1865. It was mustered out of service on September 30, 1865. (NPS-BU; Wiki; MSR-US)
The 7th Regiment, Illinois Cavalry (Union) was organized on October 13, 1861 at Camp Butler, Illinois under the command of Col. William Pitt Kellogg and served in the Western Theater. It was later commanded by Cols. Edward Prince and John M. Graham. It was mustered out of service on October 20, 1865. (NPS-BU; MSR-US; Wiki)
The 11th Regiment, Illinois Infantry (Union) was organized on December 20, 1861 in Sangamon County, Illinois under the command of Col. William H. L. Wallace and served in the Western Theater. It was later commanded by Cols. Thomas E. G. Ransom, Garrett L. Nevius, and James Henry Coates. It was mustered out of service on July 14, 1865. (NPS-BU; MSR-US; Wiki)
The 124th Regiment, Illinois Infantry was organized on September 10, 1862 at Camp Butler, Illinois, and served in the Western Theater. It was assigned to the Army of the Tennessee, and later, the Department of the Gulf. It was mustered out of service on August 15, 1865. (NPS-BU; Wiki; MSR-US)
The 28th Regiment, Illinois Infantry (Union) was mustered into service on August 15, 1861 at Camp Butler, Illinois under the command of Col. Amory K. Johnson and served in the Western Theater. It was later commanded by Col. Hinman Rhodes and Lt. Col. Richard Ritter. It was mustered out of service on March 15, 1866. (NPS-BU; MSR-US; Wiki)
The 33rd Regiment, Illinois Infantry (Union), also known as the Teacher's Regiment, was organized on September 3, 1861 at Camp Butler, Illinois under the command of Col. Charles Edward Hovey and served in the Western Theater. It was later commanded by Cols. Charles E. Lippincott and Isaac H. Elliott. It was mustered out of service on November 24, 1865. (NPS-BU; MSR-US; Wiki)
The 42nd Regiment, Illinois Infantry (Union) was organized on July 22, 1861 in Cook County, Illinois under the command of Col. William Appleton Webb and served in the Western Theater. It was later commanded by Cols. George W. Roberts and Nathan H. Walworth. It was mustered out of service on December 16, 1865. (NPS-BU; MSR-US; Wiki)
The 8th Regiment, Illinois Infantry was organized on April 25, 1861 in Springfield, Sangamon County, Illinois under the command of Col. Richard J. Oglesby and served in the Western Theater in the Army of the Tennessee. Organized for a term of three months, it was reorganized for three-year enlistments at Cairo, Alexander County, Illinois, on July 25, 1861. It was later commanded by Cols. Frank Rhoades (April 1, 1862-October 7, 1862), John P. Post (October 8, 1862-September 28, 1863), Josiah A. Sheetz (September 29, 1863-May 4, 1866). It was mustered out of service on May 4, 1866. (NPS-BU; Wiki; MSR-US)
The 9th Regiment, Illinois Infantry (Union) was organized between July–August 1861 in Alexander County, Illinois and served in the Western Theater. It mustered out of service on July 9, 1865. (NPS-BU; Wiki)
Company L (also known as Battery L) of the 2nd Regiment, Illinois Light Artillery was organized in Chicago, Cook County, Illinois under the command of Capt. William H. Bolton and served in the Western Theater in the Army of the Tennessee, and later, the Department of Mississippi. It was later commanded by Capts. Erastus A. Nichols (September 1864-June 3, 1865) and Thaddeus C. Hulaniski (June 12, 1865-August 9, 1865). It was mustered out of service on August 9, 1865. (Wiki; MSR-US)
