Organized at St. Louis, Mo., May 18, 1861. Attached to Lyons' Army of the West. Expedition from St. Louis to Potosi May 15 (Co. "A"). Moved to Springfield, Mo., June 16-17. Action at Dry Forks July 5. Expedition toward Fayette, Ark., August 3-5. Battle of Wilson's Creek August 10. March to Rolla, thence to St. Louis August 11-21. Mustered out August 27, 1861.
Regiment lost during service 1 Officer and 24 Enlisted men killed and mortally wounded and 1 Officer and 32. Enlisted men by disease. Total 58.