Organized at Davenport August and September, 1861. Left State for Benton Barracks, Mo., December 7, 1861, and duty there till February, 1862. Attached to Dept. of Missouri December, 1861, to March, 1862. Unassigned, Army of the Mississippi, to April, 1862. 2nd Brigade, Cavalry Division, Army of Mississippi, to June, 1862. Cavalry, 5th Division, Army of Mississippi, to September, 1862. 2nd Brigade, Cavalry Division, Army of Mississippi, to November, 1862. Grierson's Cavalry Brigade, Left Wing 13th Army Corps (Old), Dept. of the Tennessee, to December, 1862. 1st Brigade, Cavalry Division, 16th Army Corps, Dept. of Tennessee, to March, 1863. (District of Memphis, Tenn., 16th Corps, January to March, 1863- 6 Companies.) 1st Brigade, 1st Cavalry Division, 16th Corps, to May, 1863. 2nd Brigade, 1st Cavalry Division, 16th Corps, to August, 1863. 3rd Brigade, 1st Cavalry Division, 16th Corps, to December, 1863. 2nd Brigade, 1st Cavalry Division, 16th Corps, to July, 1864. 2nd Brigade, 1st Cavalry Division, District of West Tennessee, to November, 1864. 2nd Brigade, 5th Division, Wilson's Cavalry Corps, Military Division Mississippi, to June, 1865. Dept. of Mississippi to September, 1865.

SERVICE:
Moved to Bird's Point, Mo., February 17, 1862. Expedition against Thompson's forces February 25-29. Moved to New Madrid, Mo., March 4. Actions at New Madrid March 13-14. Operations against Island No. 10 March 16-April 8. Expedition to Fort Pillow, Tenn., April 12-17. Moved to Hamburg Landing, Tenn., April 17-22. Action at Birmingham April 24. Monterey April 28-29. Advance on and siege of Corinth, Miss., April 29-May 30. Reconnoissance to Memphis & Charleston Railroad April 30. Glendale May 8. Farmington May 9. Near Farmington May 12. Reconnoissance to Memphis & Charleston Railroad May 13-15. Expedition to Booneville May 28-30. Booneville May 29. Occupation of Corinth and pursuit to Booneville May 30-June 12. Tuscumbia Creek May 31-June 1. Blackland June 4. Reconnoissance toward Baldwyn June 6. Reconnoissance to Guntown, Baldwyn, etc., June 9-10. Booneville July 1. Brown Springs July 21. At Rienzi till September. Rienzi August 26. Payton's Mills September 19. Iuka September 19-20. Battle of Corinth, Miss., October 3-4. Pursuit to Ripley October 5-12. Capture of Ripley and Orizaba November 2. Grant's Central Mississippi Campaign November, 1862, to January, 1863. Warsham's Creek November 6, 1862. LaGrange November 8-9. Coldwater November 8. Hudsonville November 9. Reconnoissance to Holly Springs November 12-14. Holly Springs November 13-14. Expedition to Ripley November 19-20. Ripley November 20. Waterford or Lumpkin's Mill November 29-30. Tallahatchie River November 30. About Oxford December 1-3. Yocana River and Spring Dale Bridge December 3. Water Valley December 4. Coffeeville December 5. Expedition against Mobile & Ohio Railroad December 14-19. Ripley December 23-25. Prairie Station February 21, 1863. Davis Mills March 14 (Detachment). Expedition to Mt. Pleasant, Miss., April 5-7. Grierson's Raid from LaGrange to Baton Rouge, La., April 17-May 2 (Detachment). Pontototoc, Miss., April 19. Palo Alto and Okolona April 21-22. Birmingham, Miss., April 24 (Detachment). Scout from LaGrange into Northern Mississippi April 29-May 5. Expedition from LaGrange to Panola, Miss., May 11-15. Walnut Hill and Pigeon Roost May 15. Tuskahoma May 15. Expedition from LaGrange to Senatobia, Miss., May 21-26. Senatobia May 23. Hernando May 28. Operations in West Mississippi June 15-22. Near Holly Springs June 16-17. Coldwater Bridge June 18 (Detachment). Matthews Ferry, Coldwater River, June 20 (Detachment). Jackson July 13. LaGrange July 16. Expedition from Memphis to Grenada, Miss., August 14-23. Grenada August 14. Expedition from Memphis to Hernando, Miss., October 10-11 (4 Cos.). Operations on Memphis & Charleston Railroad November 3-5. Colliersville, Tenn., and Coldwater, Miss., November 3. Moscow November 5. Operations on Memphis & Charleston Railroad against Lee's attack November 28-December 10. Salisbury December 3. Wolf Bridge, near Moscow, December 3-4. Pursuit of Forrest December 22-30. Colliersville, Tenn., December 27-28. At Memphis till February 5, 1864. Smith's Raid from Colliersville to Okolona, Miss., February 11-26. Wall Hill February 12. West Point, Miss., February 20-21. Okolona February 21. Ellis Bridge February 21. Ivy's Hill, near Okolona, February 22. Veterans on furlough April-May. Smith's Expedition to Tupelo, Miss., July 5-21. Near Ripley July 7. Camargo's Cross Roads, near Harrisburg, July 13. Tupelo July 14-15. Old Town Creek July 15. Smith's Expedition to Oxford, Miss., August 1-30. Tallahatchie River August 7-9. Hurricane Creek and Oxford August 9. Hurricane Creek August 13-14 and 19. Oxford August 19. Operations in Tennessee and Alabama against Hood, and Nashville Campaign October to January, 1865. Eastport, Miss., October 10, 1864 (Detachment). Near Hernando October 11 (Detachment). Expedition from Memphis to Moscow November 9-13. Shoal Creek November 11. On line of Shoal Creek November 16-20. Butler Creek November 22. Campbellsville and Lynnville November 24. In front of Columbia November 24-27. Lawrenceburg November 27. Mt. Carmel November 29. Battles of Franklin November 30; Nashville December 15-16. Pursuit of Hood December 17-29. West Harpeth River December 17. Spring Hill December 18. Rutherford Creek and Curtis Creek December 19. Lawrenceburg December 22. Lynnville and Richland Creek December 24. Richland Creek December 25. King's Gap, near Pulaski, December 25. Egypt Station, Miss., December 28 (Co. "E"). Tuscumbia February 20, 1865. Duty at Huntsville and Florence, Ala., Eastport, Miss., and Gravelly Springs, Ala., till June, 1865. Expedition to Russellsville, Ala., February 19-23, 1865, and in the Dept. of Mississippi till September. Mustered out September 19, 1865.

Regiment lost during service 1 Officer and 59 Enlisted men killed and mortally wounded and 2 Officers and 207 Enlisted men by disease. Total 269.