3rd Illinois Cavalry Regiment

Moved to St. Louis, Mo., September 25, thence to Jefferson City, Mo., and to Warsaw, Mo., October 1–11.

2nd Brigade, 4th Division, Army of Southwest Missouri, to May, 1862.

3rd Brigade, Cavalry Division, District of Eastern Arkansas, December, 1862.

(5 Cos., "B", "C", "F", "H" and "I," 2nd Brigade, 1st Cavalry Division, 16th Army Corps, March to June, 1863.

1st Brigade, 1st Division Cavalry, 16th Army Corps, to August, 1863, 2nd Brigade, 1st Cavalry Division, 16th Army Corps, to January, 1864.)

(Co. "D" at Headquarters 15th Army Corps to July, 1863, then with Arkansas Expedition to December, 1863.)

Other Companies attached to Cavalry Brigade, 13th Army Corps, Dept.

of the Gulf, to December, 1863, when rejoined Regiment in 1st Brigade, 1st Cavalry Division, 16th Army Corps, to April, 1864.

3rd Brigade, 1st Cavalry Division, 16th Army Corps, to June, 1864.

1st Brigade, Cavalry Division, District of West Tennessee, to July, 1864.

1st Brigade, 1st Cavalry Division, District of West Tennessee, to November, 1864.

Moved to Rolla November 13–19, and duty there till January, 1862.

Pott's Hill, Sugar Creek, February 16.

Expedition from Helena to Arkansas Post November 16–21.

Capture of Fort Hindman, Arkansas Post, January 10–11.

Other Companies remained on duty with 13th Army Corps to August, 1863.

Company "D" with 1st Division, 15th Army Corps, to July, then with Arkansas Expedition till December, 1863.

Movement on Bruinsburg and turning Grand Gulf April 25–30.

Campaign in Western Louisiana, operations in Teche Country October 3-November 30.

Operations against Chalmers' in North Mississippi and West Tennessee October 4–17.

Operations on Memphis and Charleston R. R. against Lee's attack November 28-December 10.

[1] Company "D."-Expedition to Greenville, Black Bayou and Deer Creek April 2–14, 1863.

[1] Regiment on Smith's Expedition from Colliersvllle, Tenn., to Okolona, Miss., February 11–26, 1864.

Camargo's Cross Roads, near Harrisburg, July 13.

Forest's attack on Memphis, Tenn., August 21 (Detachment).

Moved to St. Louis, Mo., thence to St. Paul, Minn. Operating against Indians in Minnesota and Dakota July 4 to October 1.

[1] The regiment suffered 8 officers and 50 enlisted men who were killed in action or who died of their wounds and 3 officers and 173 enlisted men who died of disease, for a total of 234 fatalities.

[2][3] Note: This article, after the introduction, is taken entirely from Dyer, Frederick H. A Compendium of the War of Rebellion: Compiled and Arranged From Official Records of the Federal and Confederate Armies, Reports of the Adjutant Generals of the Several States, The Army Registers and Other Reliable Documents and Sources.

3 The Union Army; A History of Military Affairs in the Loyal States, 1861–65 — Records of the Regiments in the Union Army — Cyclopedia of Battles — Memoirs of Commanders and Soldiers.

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