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Fourth regiment Massachusetts Cavalry.
（1)
Col. Arnold Augustus Rand.
（2)
Col. Francis Washburn,
Bvt. Brig. Gen. U. S. Vols.
（3)
Col. Horatio Jenkins, Jr.,
Bvt. Brig. Gen. U. S. Vols.
| | | companies. |
| Field and staff. | Line | A | B | C | D | E | F | G | H | I | K | L | M | Recruits. | Totals. |
| Number on regimental rolls,— |
| Officers, | 18 | 70 | – | – | – | – | – | – | – | – | – | – | – | – | – | 88 |
| Enlisted men,1 | 19 | – | 132 | 120 | 118 | 125 | 119 | 114 | 115 | 109 | 145 | 148 | 179 | 168 | 10 | 1,621 |
| Totals, | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1,709 |
| Enlisted men (included above) commissioned in regiment.2 | 12 | – | 2 | 1 | 1 | 1 | 1 | 1 | 1 | – | 4 | 1 | 5 | 3 | – | 33 |
| Enlisted men (included above) serving elsewhere within regiment. | – | – | – | – | – | 2 | 1 | – | – | 1 | 4 | 2 | 2 | – | – | 12 |
| Totals, | 12 | – | 2 | 1 | 1 | 3 | 2 | 1 | 1 | 1 | 8 | 3 | 7 | 3 | – | 45 |
| Actual total of members of regiment,— |
| Officers, | 18 | 70 | – | – | – | – | – | – | – | – | – | – | – | – | – | 88 |
| Enlisted men,3 | 7 | – | 130 | 119 | 117 | 122 | 117 | 113 | 114 | 108 | 137 | 145 | 172 | 165 | 10 | 1,576 |
| Totals, | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 1,664 |
The 4th Mass. Cavalry, under
Col. Arnold Augustus Rand, was organized Feb. 12, 1864.
The first of the three battalions composing it, the Independent Battalion Mass. Cavalry, at that time stationed in
South Carolina, was originally part of the 1st Mass. Cavalry; and the record of its service from December, 1861, to May, 1864, forms part of the history of that regiment.
The 2d Battalion was recruited in February, 1864, and left the
State on March 20 in command of
Maj. David B. Keith; the 3d Battalion, under
Major Cabot, left on April 23.
The 2d Battalion, stationed at
Hilton Head, S. C., engaged in an expedition up the
Ashepoo River in May; in June two companies, under
Capt. Joseph W. Morton, moved to
Jacksonville, Fla., and made their headquarters there, in August forming part of an expedition to
Palatka, Fla. In July a detachment of the battalion, under
Captain Staples, engaged in an expedition to
St. John's Island, S. C. The battalion remained stationed thus by detachments at
Hilton Head, S. C., and
Jacksonville, Fla., throughout the year and until the close of the war. Immediately after organization the 1st and 3d Battalions were ordered to
Virginia; the 3d encamping at Newport News during most of the month of May, 1864, and afterward establishing headquarters at
City Point, Va.; while the 1st Battalion, under command of
Captain Richmond, moved to
Petersburg, being in action at
Bermuda Hundred and
Drewry's Bluff.
In June Cos. E and H of the 3d Battalion, under
Captain Ray, were on detached service with the 18th Army Corps.
On August 15 these two battalions, under command of
Colonel Rand, became a part of the 10th Army Corps and took part in the siege of
Petersburg, remaining thus engaged until the spring of 1865.
Meanwhile four companies were detached and joined the 24th and 25th Army Corps, remaining with them until their muster out, and taking part with them in the pursuit of the Confederate army and the occupation of
Richmond.
Cos. I, L and M before
Petersburg met at
High Bridge, Va., the greatest loss which the regiment suffered during its service.
After the surrender of
General Lee, all the detachments being united, the regiment remained at
Richmond during the
summer and
autumn of 1865, were mustered out of service November 14, and, returning to
Boston, were paid off and discharged at
Gallop's Island Nov. 26, 1865.
