Sergeant-major Palmer Williamson, mustered into service August 25, 1861; transferred to company G; promoted to second lieutenant December 21, 1861.
Sergeant-major James B. Storer, mustered into service October 17, 1861; transferred to company F; promoted to second lieutenant April 13, 1862.
Sergeant-major Benjamin W. Smith, mustered into service August 19, 1861; transferred to company K; promoted to second lieutenant August 9, 1862; see company K.
Sergeant-major Cary H. Russell, mustered into service September 30, 1861; transferred to company G; promoted to second lieutenant March 1, 1862; see company G.
Sergeant-major Charles W. Kellogg, mustered into service August 26, 1861; transferred to company C; promoted to second lieutenant December 1, 1863; see company C.
Sergeant-major Henry M. Ryder, mustered into service August 26, 1861; transferred to company C; promoted to second lieutenant January 26, 1863; see company C.
Sergeant-major Jacob Buck, mustered out with regiment; re-enlisted as sergeant December 21, 1863; promoted sergeant-major June 19, 1865; first lieutenant July 12, 1865.
Quartermaster-sergeant Martin D. Norris, mustered into service August 14, 1861; transferred to company A; promoted to second lieutenant April 13, 1862; see company A.
Quartermaster-sergeant Caius C. Lord, mustered out with regiment; promoted to quartermaster-sergeant June 17, 1865.
Hospital Steward Ellwood P. Haines, mustered into service September 16, 1861; transferred to field and staff; promoted to assistant surgeon March 31, 1863.