The 1st Regiment Cavalry "Mounted Rangers" was organized for frontier duty against Indians. The regiment lost during service 2 Officers and 4 Enlisted men killed and mortally wounded and 31 Enlisted men by disease. Total 37.
1st Battalion engaged in frontier duty until June, 1863.
1st Battalion on duty at Fort Ripley, and rest of Regiment at Fort Snelling, Minn., until December
Mustered out October 20 to December 7, 1863.
Sibley's Expedition against Indians in Dakota Territory June 16-September 14. Battle of Big Mound, Dakota Territory, July 24, 1863
Dead Buffalo Lake July 26. Stony Lake July 28. Missouri River July 28-30.
The National Archives index for this regiment contains the names of 1611 men.