Organized at Baltimore, Md., and mustered in August 18, 1862. Ordered to Monocacy, Md., September 18, 1862. Attached to Kenly's Maryland Brigade, Defenses Upper Potomac, Middle Department, to March, 1863. 3rd Brigade, 2nd Division, 8th Army Corps, Middle Department, to June, 1863. French's Division, 8th Army Corps, to July, 1863. Defenses of Baltimore, 8th Army Corps, to October, 1863. 3rd Separate Brigade, 8th Army Corps, to December, 1863. Artillery Reserve, 8th Army Corps, to July, 1864. Reserve Division, District of Harper's Ferry, W. Va., to January, 1865. Camp Barry, Washington, D.C., 22nd Army Corps, to June, 1865.
SERVICE.--Defense of Williamsport, Md., September 20-21. 1862. Duty at Williamsport till December. Moved to Maryland Heights December 11-12, and duty there till March, 1863. Moved to Berryville, Va., March 28, 1863. and duty there till June. Action at Berryville June 13. Opequan Creek June 13. Retreat to Winchester June 13. Battle of Winchester June 14-15. Battery mostly captured. Reorganizing battery and duty in the Defenses of Baltimore, Md., till June, 1864. Operations against Early's Invasion June and July. Middletown, Solomon's Gap and Catoctin Mountains July 7. Frederick, Md., July 7-8. Battle of Monocacy July 9. Pursuit of Early till July 30. Duty in the Defenses of Harper's Ferry, W. Va., till January, 1865, and at Camp Barry, Defenses of Washington, D.C., till June. Mustered out June 17, 1865.
Battery lost during service 1 Enlisted man killed and 7 Enlisted men by disease. Total 8.