James A. Grier, Dec. 24, 1863; Dec. 10, 1863; not mustered.
John B. Stanbrough, Sept. 10, 1862; Aug. 20, 1862; resigned, Nov. 12, 1862.
Isaac M. Martin, Dec. 30, 1862; Nov. 12, 1862; dismissed, May 15, 1863.
Wm. B. Van Houten, Aug. 20, 1863; May 15, 1863; promoted to adjutant, Oct. 10, 1863.
Charles Stuart, Oct. 10, 1863; Sept. 17, 1863; discharged, May 15, 1865.
James H. Roosa, Sept. 10, 1862; Aug. 23, 1862; resigned, March 7, 1863.
James Finnegan, May 26, 1863; March 7, 1863; promoted to captain, Feb. 9, 1864.
Lewis M. Wisner, Feb. 23, 1864: Feb. 1, 1864; discharged, Aug. 5, 1864.
John C. Wood, Nov. 15, 1864; Aug. 1, 1864; promoted to captain, Feb. 18, 1865.
Thomas Hart, Feb. 18, 1865; Jan. 1, 1865; mustered out with regiment, June 3, 1865.