Duty in District of St. Louis till July, 1863. Operations against Marmaduke April 16-May 2, 1863. Castor River, near Bloomfield, April 29. Bloomfield April 30. Join Davidson's Cavalry Division at Pilot Knob June, 1863. Davidson's march to join Steele and Steele's Expedition to Little Rock, Ark., July 1-September 10. Bayou Metoe or Reed's Bridge August 27. Bayou Fourche and capture of Little Rock September 10. Pursuit of Price September 11–13. Near Little Rock September 11. Transferred to New Battery "D" September 29, 1863. Reorganized at Springfield, Mo., January 14, 1864. Duty in the District of St. Louis, Mo., till June, 1865. Expedition from New Madrid, Mo., and skirmishes in swamps of Little River, near Oceola and on Pemiscott Bayou, April 5–9, 1864. Leesburg and Harrison September 28–29. Little Blue October 21. Big Blue and State Line October 22. At Franklin, Mo., till June, 1865. Moved to Omaha, Neb., June 11–20. Powder River Expedition. March to Powder River and Fort Connor July 11-September 20. Skirmishes on Powder River September 2–8. Mustered out November 25, 1865.