91st Illinois Infantry

Organized at Camp Butler, Ill., and mustered in September 8, 1862. Moved to Shephardsville, Ky., October 1-7, 1862. Attached to Railroad Guard, Department of the Ohio, to December, 1862. District of St. Louis, Mo., February to July, 1863. 2nd Brigade, Herron's Division, 13th Army Corps, Department of the Tennessee, July, 1863. 2nd Brigade, 2nd Division, 13th Army Corps, Dept. of the Tennessee, to August, and Dept. of the Gulf to October, 1863. 1st Brigade, 2nd Division, 13th Army Corps, to June, 1864. U.S. forces Texas, Dept. of the Gulf, to August, 1864. Garrison Brazos Santiago, Texas, to December, 1864. Defences of New Orleans, La., Dept. of the Gulf, to February, 1865. 2nd Brigade, 3rd Division, 13th Army Corps, Military Division West Mississippi, to July, 1865.

SERVICE. – Guarding Louisville & Nashville R. R. and scouting through Kentucky after Morgan October 7 to December 27, 1862. Actions with Morgan at Nolin Station and Bacon Creek December 26, and at Elizabethtown, Ky., December 27. Regiment captured and paroled December 28. On duty as paroled prisoners of war at Benton Barracks, Mo., February 28 to June 5, 1863. Exchanged June 5, 1863. Moved to Vicksburg, Miss., July 8-15, thence to Port Hudson, La., July 24-25 and to New Orleans, La., August 13. At New Orleans till September 5. Moved to Morganza Bend September 5-6. Action at Morgan's Ferry, Atchafalaya River, September 7. Morganza September 8. Duty at Morganza till October 10. Moved to New Orleans, La., October 10-11; thence to Point Isabel, Texas, October 23-November 3. March to Brownsville November 6-9, and frontier duty there till July 28, 1864. Raid to Salt Lake December 31, 1862-January 9, 1864. Moved to Brazos Santiago July 28-30, and garrison duty, there till December 24, 1864. Operations near Brazos Santiago August 4-15. Palmetto Ranch September 6. Action Bagdad September 11. Bocca Chtca Pass October 14. Moved to New Orleans December 24-29 and duty there till February 21, 1865. Campaign against Mobile, Ala., and its defences February 21-April 12. Siege of Spanish Fort and Fort Blakely March 26-April 8. Assault on and capture of Fort Blakely April 9. Occupation of Mobile April 12. Whistler's Station April 13. March to Nanahubba Bluffs, Tombigbee River, and duty there till May 9. Moved to Mobile and duty there till July. Mustered out July 12 and discharged at Chicago, Ill., July 28, 1865.

Regiment lost during service 12 Enlisted men killed and mortally wounded and 1 Officer and 131 Enlisted men by disease. Total 144.

SOURCE: Frederick H. Dyer, A Compendium of the War of the Rebellion, Part 3, p. 1085