Organized May 19, 1862, and assigned to duty in the District of Rolla, Mo., Dept. of Missouri, Headquarters at Waynesville, Mo., till February, 1863; operating in Pulaski, Miller, Phelps, Texas, Wright and LaClede Counties. Scout from Waynesville to Big Piney July 6-8, 1862 (Cos. "B" and "F"). Pursuit of Poindexter in Missouri and skirmishes at Grand River, Lee's Ford, Chariton River, Walnut Creek, Compton's Ferry, Switzler's Mills and Yellow Creek, August 8-15 (Co. "D"). Expedition from Waynesville August 29. Caledonia House August 29. Expedition from Eureka September 23-24 (Co. "E"). Booneville October 9. California House October 18 (Detachment). Designation changed to New 5th Regiment State Militia Cavalry February 2, 1863.
SOURCE: Frederick H. Dyer, A Compendium of the War of the Rebellion, Part 3, p. 1311