[
272]
Fortieth regiment Massachusetts Infantry.
（1)
Col. Burr Porter.
（2)
Col. Guy V. Henry,
Bvt. Brig. Gen. U. S. Vols.
| Field and Staff. | Line. | companies. | Unassigned Recruits. | Totals. |
| | | A | B | C | D | E | F | G | H | I | K |
| Number on regimental rolls,— |
| Offcers, | 21 | 77 | – | – | – | – | – | – | – | – | – | – | – | 98 |
| Enlisted men,1 | 14 | – | 119 | 103 | 100 | 100 | 99 | 101 | 90 | 99 | 99 | 97 | 1 | 1,022 |
| Totals, | – | – | – | – | – | – | – | – | – | – | – | – | – | 1,120 |
| Enlisted men (included above) commissioned in regiment.2 | 11 | – | 3 | 3 | 4 | 3 | 4 | 3 | 5 | 4 | 3 | 3 | – | 46 |
| Enlisted men (included above) serving elsewhere within regiment. | – | – | 1 | 1 | – | 3 | – | – | 1 | – | 1 | – | – | 7 |
| Totals, | 11 | – | 4 | 4 | 4 | 6 | 4 | 3 | 6 | 4 | 4 | 3 | – | 53 |
| Actual total of members of regiment,— |
| Officers, | 21 | 77 | – | – | – | – | – | – | – | – | – | – | – | 98 |
| Enlisted men,3 | 3 | – | 115 | 99 | 96 | 94 | 95 | 98 | 84 | 95 | 95 | 94 | 1 | 969 |
| Totals, | – | – | – | – | – | – | – | – | – | – | – | – | – | 1,067 |
The 40th Mass. Infantry was organized at Camp Stanton,
Lynnfield, Mass., in the summer of 1862; four companies were mustered into service in August and the remainder in the early part of September; Company G, the last to be filled, being mustered September 5.
It left the
State September 8, under command of
Lieut.-Col. Joseph A. Dalton,
Col. Burr Porter, appointed September 7, taking command at
Washington on the 14th.
The regiment remained on picket and guard duty in the vicinity of
Washington during the
autumn and
winter of 1862-63; it moved to
Suffolk April 15, 1863, and occupied the city during the siege, making a reconnoissance on April 24 and another on May 3.
It took part in the operations in the vicinity after the raising of the siege, meeting the enemy at Baltimore Cross Roads July 2.
The command returned to
Washington July 11, and moving to
Frederick, Md., joined the Army of the Potomac in the pursuit of
Lee's Army into
Virginia.
It was ordered, August 6, to
Folly Island, S. C., and served in the trenches at
Fort Wagner until the evacuation by the
Confederates.
In November,
Colonel Porter having resigned,
Capt. Guy V. Henry, a graduate of
West Point, was appointed colonel, and took command of the regiment November 10.
Equipped as mounted infantry at
Hilton Head in January, 1864, it moved, February 4, to
Jacksonville, Fla.; engaged at Barber's Ford February 10, and at
Olustee on the 20th.
A detachment of the regiment under
Captain Marshall met with loss also at
Gainesville February 15.
Unmounted, the regiment joined
General Butler's forces March 28, at
Gloucester Point, Va., and shared in the engagements at Arrowfield Church and
Drewry's Bluff.
Becoming part of the 18th Corps, it joined the Army of the Potomac at Cold Harbor June 1, and went at once into action, suffering loss, engaging again actively on the 3d.
It reached
Petersburg June 15, took part in the assault on that day and shared afterward in the siege.
Relieved from duty in the trenches August 27, the regiment served for a month on provost duty at Bermuda Landing, taking part afterward in the operations about
Bermuda Hundred.
On March 4, 1865, it left its winter camp at Chapin's Farm for
Fortress Monroe, and shared with its brigade in the expeditions to
Fredericksburg and to
White House Landing.
It reached
Richmond April 3, encamping near the city, and on the 25th moved to
Manchester, Va., where it was located until mustered out of service, June 17, 1865.
It reached
Massachusetts on the 21st, and was paid off and discharged at Readville June 30, 1865.
