First regiment Massachusetts Heavy Artillery.
（1) Col. William B. Greene
. (2) Col. Thomas R. Tannatt
|Field and staff.||Line.||Band.||A||B||C||D||E||F||G||H||I||K||L||M||Unassigned Recruits.||Totals.|
|Number on regimental rolls,—|
|Enlisted men (included above) commissioned in regiment.||–||–||–||7||4||6||8||3||6||3||7||3||9||1||5||–||62|
|Enlisted men (included above) serving elsewhere within regiment.||–||–||–||–||1||1||1||2||1||6||1||–||1||1||1||–||16|
|Actual total of members of regiment,—|
The let Mass. Heavy Artillery was recruited as the 14th Mass. Infantry in the spring of 1861, most of its members being from Essex County
; it was mustered into service July 5, and left the State
Its first colonel was a West Point graduate, and had served in the Florida Indian
It served for the remainder of the year in the defences of Washington
On Jan. 1, 1862, the regiment was reorganized, and became the 1st Mass. Heavy Artillery; 50 recruits were added to each company, and two additional companies were formed.
The regiment still served on garrison duty in the forts about Washington
; it was sent to the front August 26, and was present, though not in action, at the battle of Manassas
On Sept. 27, 1862, a battalion, consisting of two companies, was detached and served at Maryland Heights
, where it remained until December, 1863, having on June 10, 1863, lost 44 men as prisoners at Winchester, Va.
, and having taken part in a skirmish at Harper's Ferry
about the same time.
On May 17, 1864, the regiment, acting as infantry, joined the Army of the Potomac near Spotsylvania, Va.
, and entered with it into General Grant
's campaign of 1864, being assigned to General Tyler
's Division, 2d Army Corps.
It took part in its first engagement May 19, 1864, on the Fredericksburg Road
, near Ny River
in the vicinity of Spotsylvania
Afterwards, as part of the 2d Brigade, 3d Division, it was engaged in the battles of North Anna
and Cold Harbor, and, crossing the James River
June 14, it took part in the assault on Petersburg
, June 16 and 22.
The regiment remained actively engaged in the siege of Petersburg
until April, 1865, and took part, after the fall of the city, in the pursuit of the Confederates
After General Lee
's surrender it was stationed at the forts in the vicinity of Washington
until its muster out in August.
The regiment returned to Massachusetts
August 20, and received its final discharge and payment at Boston
, Aug. 25, 1865.