McCook, Robert Latimer Age 31; Born New Lisbon, Ohio; Colonel, May 27, 1861; Brigadier General of Volunteers, Apr. 4, 1862; wounded at Battle of Mill Springs, June 19, 1862; wounded at NewMarket, Alabama, Aug. 5, 1862, Died August 6, 1862.
Sondershoff, Charles Age 37 Born Danzig, Prussia; Lieutenant Colonel, May 27, 1861; Resigned Mar. 8, 1862. (a former officer in the Prussian army)
Willich, August Age 51; Born Gorzyn, Prussia; Major, May 27, 1861; resigned Aug. 22, 1861 (Colonel, 32nd Indiana Volunteer Infantry Regiment; former officer in the Prussian army).
Joseph, Karl Age 29; Born Schwerin, Mecklenburg; Major, March 8, 1862; Lieutenant Colonel, Aug. 6, 1862; resigned May 10, 1863.
Schröder, Fritz (Friedrich) Age 35; Major August 6, 1862; Lieutenant Colonel, Feb. 14, 1864; mustered out.
Söllenheim, Konrad Age ?; Born Bayreuth, Bavaria; Assistant Physician, October 3, 1861; Regimental Surgeon, May 21, 1861; mustered out.
Fuchshuber, Joseph A. Age ?; Chaplain, Feb 18, 1862; resigned June 9, 1863.
Davenport, James Age ?; Born Delaware, Ohio; Assistant Surgeon, Aug. 17, 1862; died Louisville, Ky., Mar. 29, 1863.
Boyle, Charles C. Age 40; resigned Apr. 29, 1863.
Wirth, Rudolph Age 23; Assistant Physician, May 27, 1861; transferred to the 1st Ohio Cavalry, Sept. 20, 1861.
Harries, Georg, H. Age 27; Born Bustorf, Silesia; Adjutant, September 6, 1861; Captain, Company E, Feb. 14, 1864.
Stängel, Wilhelm Age 37; Born Scwhäbisch Gmünd, Württemberg; Chaplain, Aug. 6, 1861; promoted to Captain, Company C, Oct. 24, 1861.
Kämmerling, Gustav Age 41; Born Mülheim an der Ruhr, Prussia; Major, Nov. 1, 1861; Lieutenant Colonel, Mar. 8, 1862; Colonel, August 6, 1862, mustered out. (Commander of municipal militia in the Prussian Rhineland and fought for the Rebels in the German Revolution 1849)
Beers, Adam M. Age ?; Born Mauch, Chunk, Penn.; Assistant Surgeon, Aug. 6, 1863; mustered out.
Benz, Bartholomäus, Age 31; Born Donaueschingen, Baden; Major, Feb. 14, 1864; mustered out.
Pönitz, Hermann Born, Leipzig, Saxony; Adjutant, Feb. 14, 1864; mustered out.
Herrmann, Raimund Age 42; Sergeant-Major, May 27, 1861; promoted to Second Lieutenant, Company D, September 1861.
Gronau, Robert Age 21; Sergeant-Major, Sept. 1, 1862; mustered out.
Landauer, Samuel Age 25; Commissary Sergeant, May 27, 1861; mustered out.
Gräff, Joseph E. Born Bamberg, Bavaria; 2nd Lieutenant, May 27, 1861; appointed Regimental Quartermaster, Sept. 6, 1861.Rodde, Edmund Age 29; Quartermaster Sergeant, May 27, 1861; discharged as disabled, Nov. 1861.
Busse, Friedrich Age 22; Quartermaster Sergeant, November 15, 1861; discharged as disabled, Apr. 11, 1863.
Brockhaus, Gustav Age 21; Quartermaster-Sergeant, April 11, 1863; mustered out.
Schmidt, WilhelmAge 20; born Hesse Kassal, Hospital Steward, May 27, 1861; discharged as disabled, Dec. 12, 1862.
Zahn, Louis Age 27; Hospital Steward; Dec. 13, 1862; mustered out.
Emminger, Dominik Age 25; Principal Musician; Aug. 1, 1863; mustered out.
Schwenzer, Richard Age 24; Principal Musician, Aug. 1, 1863; transferred to Camp Dennison, June 7, 1864. 
