Duty in District of St. Louis till November, 1862. Pitman's Ferry, Ark., October 27, 1862. At St. Louis till June, 1863. Joined Division at Pilot Knob, Mo., June, 1863. Davidson's march to join Steele and Steele's Expedition to Little Rock, Ark., July 1-September 10. March to Clarendon, on White River, July 1-August 8. Shallow Ford Bayou, Metoe, August 30. Bayou Fourche and capture of Little Rock September 10. Pursuit of Price September 11–14. Near Little Rock September 11. Transferred to new Battery "E" September 29, 1863. Reorganized at St. Louis, Mo., February 15, 1864. Duty at St. Louis till August, 1864. Ordered to Springfield, Mo., August 15, and duty there till November. Moved to Paducah, Ky., November 10, to Rolla November 26, thence to Franklin, Mo., and duty there till June, 1865. Moved to Omaha, Neb., June 11–20. Powder River Expedition. March to Powder River and Fort Connor July 1-September 20. Actions on Powder River September 2–8. Mustered out December 20, 1865.