Colonel William T. Fitch, mustered into service July 17, 1863; promoted to major January 28, 1864; wounded at Dug Gap, Georgia, May 8, 1864; discharged for wounds received in action, October 13, 1864.
Colonel Jonas Schoonover, mustered out with regiment; entered service as captain October 15, 1861; promoted to major January 18, 1865; to lieutenant-colonel April 1, 1865; to colonel July 12, 1865; the only officer of the regiment commissioned before leaving the State, who served through the war; commanded company H from November 1, 1864, to January 31, 1865.
Lieutenant-colonel Thomas Clark, mustered into service as major August 15, 1861; promoted to lieutenant-colonel November 28, 1861; honorably discharged, for disability, June 19, 1863.
Lieutenant-colonel Edward Hayes, discharged, for disability, November 17, 1864; entered the service as captain August 26, 1861; promoted to major August 16, 1863; to lieutenant-colonel October 17, 1863; wounded at Dug Gap, Georgia, May 8, 1864.
Major John S. Clemmer, mustered into service December 25, 1861; honorably discharged, for wounds received at Port Republic, Virginia, December 12, 1862.
Major Myron T. Wright, died January 7, 1865, from wounds received in action at Savannah, Georgia, December 19, 1864; wounded at Peach Tree creek, Georgia, July 20, 1864; entered service as first lieutenant; promoted to captain March 13, 1862; to major October 29, 1864; to lieutenant-colonel January 18, 1865.
Major Everson J. Hurlburt, mustered out with regiment; entered the veteran service as captain; promoted to major April 24, 1865; lieutenant-colonel July 12, 1865; mustered out with regiment; wounded in battles of Port Republic, Virginia, Cedar Mountain, Virginia, and Gettysburg, Pennsylvania.
Surgeon Amos K. Fifield, mustered into service August 23, 1861; discharged, for disability, August 12, 1864.
Surgeon Ellwood P. Haines, resigned June 26, 1865; promoted assistant surgeon March 31, 1863; promoted to surgeon August 29, 1864.
Surgeon Thomas B. Miser, mustered out with regiment; entered service as assistant surgeon August 24, 1864; promoted to surgeon June 26, 1865.