Organized at Cape Girardeau, Mo., August 10, 1861, under authority of Gen. Fremont. Attached to District of Cairo to February, 1862. 1st Brigade, 1st Division, Army of the Tennessee, to July, 1862.

SERVICE - Duty at Cape Girardeau, Bird's Point and Cairo until February, 1862. Skirmish at Huntley's Farm, near Belmont, Mo., September 26, 1861. Lucas Bend September 26. Operations about Ironton and Fredericktown October 12-25. Engagement at Fredericktown October 21. Expedition from Cairo into Kentucky January 10-21, 1862. Operations against Fort Henry, Tenn., February 2-6. Investment and capture of Fort Donelson, Tenn., February 12-16. Moved to Pittsburg Landing, Tenn., March 6-13. Battle of Shiloh, Tenn., April 6-7. Advance on and siege of Corinth, Miss., April 29-May 30. Raid on Mobile and Ohio R. R. and skirmish at Purdy, Tenn., May 4. Moved to Bethel and Jackson, Tenn., June 4-7 and duty there until July. Assigned to Stewart's Independent Cavalry Battalion July, 1862.