Henry F. Travis, Feb. 27, 1863; Jan. 14, 1863; promoted to Captain, Aug. 20, 1863. Ellis Post, Aug. 20, 1863; April 21, 1863; mustered out with regiment, June 3, 1865. Surgeons. John H. Thompson, Sept. 10, 1862; July 26, 1862; dismissed Nov. 25, 1864; disability removed by order of the President, Jan. 14, 1865. John H. Thompson, Feb. 15, 1865; Feb. 15, 1865; failed to muster. Robert V. K. Montfort, March 22, 1865; March 22, 1865; mustered out with regiment, June 3, 1865. Assistant Surgeons. Edward G. Marshall, Sept. 10, 1862; Sept. 5, 1862; dismissed, Aug. 7, 1863. Robert V. K. Montfort, Sept. 10, 1862; Sept. 10, 1862: promoted to surgeon, March 22, 1865. Edward C. Fox, April 6, 1865; April 7, 1865; mustered out with regiment, June 3, 1865. Chaplain. Thomas Scott Bradner, Oct. 21, 1862; Aug. 23, 1862; mustered out with regiment, June 3, 1865. Captains. Charles H. Weygant, Sept. 10, 1862; Aug. 12, 1862; promoted to major, Sept. 14, 1863. Charles B. Wood, Oct. 10, 1863; July 2, 1863; discharged, Sept. 21, 1864. Thomas Taft, Nov. 15, 1864; Sept. 21, 1864; mustered out with regiment, June 3, 1865. Henry S. Murray, Sept. 10, 1862; Aug. 14, 1862; promoted to major, Oct. 10, 1863. William E. Mapes, Dec. 17, 1863; July 2, 1863; discharged, Dec. 15, 1864. Robert J. Malone, Dec. 17, 1864; Sept. is, 1864; mustered out with regiment, June 3. 1865. James Cromwell, Sept. 10, 1862; Aug. 15, 1862; promoted to major, Sept. 10, 1862. William Silliman, Oct. 3, 1862; Aug. 20, 1862; promoted to colonel, 26th U. S. C. T., Feb. 1, 1864. James Finnegan, Feb. 9, 1864; Feb. 1, 1864; died of wounds, Oct. 28, 1864. James A. Grier, Nov. 15, 1864; Oct. 27, 1864; not mustered. James W. Benedict, Sept. 10, 1862; Aug. 16, 1862; mustered out with regiment, June 3, 1865. John C. Wood, Feb. 18, 1865; Jan. 1, 1865; mustered out with regiment, June 3, 1865. William A. McBurney, Sept. 10, 1862; Aug. 19, 1862; resigned, March 9, 1863. Daniel Sayer, Dec. 17, 1863; March 6, 1863; mustered out with regiment, June 3, 1865. Isaac Nicoll Sept. 10, 1862; Aug. 20, 1862; killed in action at Gettysburg, Pa., July 2, 1863. James O. Denniston, Aug. 20, 1863; July 2, 1862; not mustered. Henry P. Ramsdell, Dec. 12, 1863; Oct. 7, 1863; not mustered. Thomas J. Quick, Dec. 17, 1863; Dec. 10, 1863; mustered out with regiment, June 3, 1865. Ira S. Bush, Sept. 10, 1862; Aug. 20, 1862; resigned, June 21, 1864. John W. Houston, July 15, 1864; June 21, 1864; not mustered. Edward J. Cormick, Nov. 15, 1864; Aug. 10, 1864; killed in action near Petersburg, Va., April 1, 1865. Lander Clark, Sept. 10, 1862; Aug. 20, 1862; resigned, May 13, 1863. Henry F. Travis, Aug. 20, 1863; April 21, 1863; mustered out with regiment, June 3, 1865. William A. Jackson, Sept. 10, 1862; Aug. 23, 1862; killed in action near Petersburg, Va., June 18, 1864. Lewis M. Wisner, July 15, 1864; July 14, 1864; not mustered as captain.