The 64th Regiment Illinois Volunteer Infantry, nicknamed "Yates' Sharpshooters" was an infantry regiment that served in the Union Army during the American Civil War.
The 64th Illinois Infantry was organized at Camp Butler, Illinois and mustered into Federal service in December 1861 as a battalion of four companies under Lt Colonel D.E.
Two additional companies were raised on December 31, 1861, under Major Fred W. Matteson.
Moved to Quincy, Ill., January 10, 1862, thence to Cairo, Ill., February 15, and to New Madrid, Mo., March 4, 1862.
Unattached, District of Corinth, 13th Army Corps (Old), Dept.
Unattached, District of Corinth, 17th Army Corps, to January 1863.
Unattached, District of Corinth, 16th Army Corps, to March 1863.
Unattached, 2nd Division, 16th Army Corps, to November 1863.
Fuller's Brigade, 2nd Division, 16th Army Corps, to March 1864.
1st Brigade, 4th Division, 16th Army Corps, to September 1864.
1st Brigade, 1st Division, 17th Army Corps, to July 1866.
At Big Springs and on guard duty at Headquarters of General Rosecrans, Commanding Army Mississippi, until November 27.
Moved to Iuka, thence to Pulaski, Tenn., November 4–11, and duty there until January 1864, and at Decatur, Ala., until May.
Four new Companies, "G," "H," "I" and "K," organized February and March 1864 by Captain (subsequently Lt Colonel) M.W.
Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills May 25 - June 5.
Operations about Marietta and against Kenesaw Mountain June 10 - July 2.
The regiment suffered 6 officers and 106 enlisted men who were killed in action or mortally wounded and 2 officers and 131 enlisted men who died of disease, for a total of 242 fatalities.
[1] Media related to 64th Illinois Infantry Regiment at Wikimedia Commons