1st Regiment, Massachusetts Heavy Artillery


 * 1st Regiment, Massachusetts Heavy Artillery Organized as 14th Massachusetts Infantry July 5, 1861. Designation changed to 1st Heavy Artillery January 1, 1862. (Cos. "B," "C," "H" and "I" attached to Defences of Upper Potomac, 8th Army Corps, Middle Department, October, 1862, to March, 1863. 2nd Brigade, 1st Division, 8th Army Corps, Middle Department, to June, 1863. Maryland Brigade, French's Command, 8th Army Corps, to July, 1863. Artillery Reserve, Army of the Potomac, to August, 1863. Unattached, Maryland Heights Division, Dept. of West Virginia, to December, 1863.) Discharged at Gallop's Island, Boston Harbor, August 25,1865. Mustered out June 29, 1865, and discharged at Readville, Mass., July 24, 1865.