Organized at Baltimore and Annapolis, Md., July 1 to August 12, 1863, for 6 months. Assigned to provost duty in Anne Arundel and Calvert counties and at Annapolis, Md., during entire term. Mustered out Companies "A" and "B" January 26, 1864; Companies "C" and "D" February 6, 1864; Company "E" January 31, 1864. Lost 13 by disease during service.