| Second Lieut. John G. B. Adams, in command of company. | |
| Co. K. | Capt. H. G. O. Weymouth, in General Hospital, severely wounded December 13. |
| First Lieut. Lysander J. Hume, absent, wounded December 13. | |
| Second Lieut. Charles H. Wellock, in command of company. | |
| Surgeon J. Franklin Dyer, surgeon in chief, Second Division, Second Corps, on special duty. | |
| Assistant Surgeon Josiah H. Willard, absent sick. | |
| Assistant Surgeon V. R. Stone, present. | |
| Chaplain Ezra D. Winslow, discharged for disability by S. O. 395, W. D., A. G. O. Dec. 15 to date Dec. 12. (This office was not again filled.) | |
| First Lieut. Edgar M. Newcomb, died Dec.20, 1862, at Falmouth, Va., from wounds received at Fredericksburg, Dec. 13, promoted from Second Lieutenant to First Lieutenant, to date Nov. 13, vice Thorndike discharged. | |
| Second Lieut. Thomas Claffey, killed in action December 13. |
The following enlisted men had been transferred to the regular army.
Private Patrick Kelly, F, Oct. 23, 1862 to Batt. A., 4th U. S. Arty.
Private Charles Sharkey, F, Oct. 23, 1862, to Batt. A, 4th U. S. Arty.
Private Geo. F. Goodwin, F, Oct. 26, 1862, to Batt. C, 4th U. S. Arty.
Private Timothy Quinn, F, Oct. 25, 1862, to Batt. C, 4th U. S. Arty.
Private Geo. A. Burnham, F, Nov. 13, 1862, Batt. C, 4th U. S. Arty.
Private John Moran, F, Oct. 26, 1862, to Batt. M, 3rd U. S. Arty.
