| ABEL, Charles | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| ABEL, Charles | Recruit | Ottawa | --- | Re-enlisted as Veteran |
| ABEL, Henry | Private | Ottawa | Jan 1, 1862 | Died at Pittsburg Landing, Tenn., Apr 19, 1862 |
| ABOGAST, John | D&S Recruit | Jersey Co | Dec 8, 1864 | Mustered out July 22, 1865 |
| ALBRO, James W | D&S Recruit | Osceola | Oct 18, 1864 | Never joined Company |
| ANDERSON, Ole O | Veteran | Ottawa | Feb 1, 1864 | Killed Jan 26, 1865, near Newcastle, Ky., by guerrillas, after having surrendered |
| ANDERSON, Ole O | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| ANDREWS, Joel | D&S Recruit | Jersey Co | Dec 8, 1864 | Mustered out July 22, 1865 |
| BAILEY, David | Recruit | Earlville | Apr 27, 1864 | Mustered out July 22, 1865 |
| BASS, John S | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| BROOKS, Louis | Recruit | Chicago | --- | Mustered out Mar 25, 1865 |
| BROWN, Henry | Private | Ottawa | Jan 1, 1862 | Disch, Oct 20, 1862; disabil. |
| BRUNINGS, Conrad | D&S Recruit | Wilcox | Oct 19, 1864 | Sub. Never joined Co. |
| CANADA, George | D&S Recruit | Lukin | Mar 29, 1865 | Sub. Never joined Co. |
| CHURCHILL, Franklin | Private | Ottawa | Jan 1, 1862 | Died, Corinth, Jun 18, 1862 |
| CHURCHILL, George | Private | Ottawa | Jan 1, 1862 | Disch, Oct 20, 1862; disabil. |
| CLARK, Lemuel B | Private | Ottawa | Jan 1, 1862 | Died July 20, 1863; wounds |
| CLARK, William D | Private | Ottawa | Jan 1, 1862 | Tr. to Regimental Band |
| CLEM, Michael | D&S Recruit | Berwick | Nov 6, 1864 | Mustered out July 22, 1865 |
| CONNELL, John C | Recruit | Ottawa | Apr 27, 1864 | Mustered out July 22, 1865 |
| CONNOLLY, Thomas | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| COOPER, Stephen | Corporal | Ottawa | Jan 1, 1862 | Prom. Hospital Steward |
| DAWSON, William | D&S Recruit | --- | Nov 17, 1864 | Mustered out July 3, 1865 |
| DEWEY, William F | Captain | Ottawa | Not must'r'd. | Commission canceled |
| DEWEY, William F | 1st Lt. | Ottawa | Jan 1, 1862 | Dismissed August 1863 |
| DIXON, John W | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| DIXON, John A | Recruit | Ottawa | --- | Re-enlisted as Veteran |
| DODGE, Benjamin F | D&S Recruit | Walnut | Nov 17, 1864 | Mustered out July 22, 1865 |
| DOLAN, Barney | Veteran | Morris | Feb 1, 1864 | Deserted Apr 25, 1865 |
| DOLAN, Barney | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| DONOHOE, Daniel | D&S Recruit | Shields | Nov 15, 1864 | Never joined Company |
| DOOLITTLE, Alfred I | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| DOOLITTLE, Alfred J | Musician | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| DORRAM, John | Recruit | DuPage | Oct 11, 1864 | Mustered out July 22, 1865 |
| DRAKE, James H | Private | Ottawa | Jan 1, 1862 | Mustered out Dec 30, 1864 |
| DRYDEN, Joseph | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| EAGAN, Richard | D&S Recruit | Ophir | Dec 3, 1864 | Sub. Never joined Co. |
| EDLEN, James | D&S Recruit | Kinton | Nov 14, 1864 | Mustered out July 22, 1865 |
| FAIRBER, Phillip | D&S Recruit | Sand Ridge | Dec 6, 1864 | Never joined Company |
| FIELD, Cyrus | Private | Ottawa | Jan 1, 1862 | Disch, Jun 19, 1862; old age |
| FILLMORE, John | Private | Ottawa | Jan 1, 1862 | Disch, Dec 6, 1862; disabil. |
| FILLMORE, William | Private | Ottawa | Jan 1, 1862 | Deserted Aug 1, 1862 |
| FITCH, John W | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| FITZGERALD, John | Recruit | Chicago | Oct 5, 1864 | Never joined Company |
| FLOOD, James | Private | Ottawa | Jan 1, 1862 | Discharged Dec 21, 1863 |
| FOX, Delman | D&S Recruit | Peru | Nov 16, 1864 | Mustered out July 8, 1865 |
| FRANKLIN, Thomas | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| FRANKLIN, Thomas | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| GLANCEY, Owen L | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| GLANCY, Owen L | Recruit | Ottawa | --- | Re-enlisted as Veteran |
| GRANT, Orrin B | Private | Ottawa | Jan 1, 1862 | Mustered out Feb 7, 1865 |
| GRAVES, Herbert | Recruit | Ottawa | --- | Deserted May 10, 1862 |
| HAMER, John | Recruit | Ottawa | --- | Died July 16, 1862 |
| HARDING, Arnet T | D&S Recruit | Elmwood | Oct 20, 1864 | Sub. MO July 22, 1865 |
| HARDING, William | D&S Recruit | --- | --- | Never joined Company |
| HARTMAN, Jacob | Private | Ottawa | Jan 1, 1862 | Disch, May 20, 1864; wounds |
| HARTMAN, Mathias S | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| HARTMAN, Mathias | Corporal | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| HASSARR, Frederick | Private | Ottawa | Jan 1, 1862 | Tr. to V.R.C., Sep 15, 1863 |
| HATTIS, Eber | Private | Ottawa | Jan 1, 1862 | Disch, Aug 1862; disabil. |
| HAYS, James | Corporal | Ottawa | Jan 1, 1862 | Disch, Apr 11, 1863; wounds |
| HAYS, John | D&S Recruit | --- | --- | Never joined Company |
| HEATON, James A | Private | Ottawa | Jan 1, 1862 | Deserted Aug 11, 1862 |
| HELFRIDGE, Eugene | Private | Ottawa | Jan 1, 1862 | Deserted Apr 3, 1863 |
| HELYSON, Alex | Private | Ottawa | Jan 1, 1862 | Disch, Oct 20, 1862; disabil. |
| HENSLER, Anthony | Veteran | Ottawa | Feb 1, 1864 | MO Jun 28, 1865; pris. war |
| HENSLER, Anthony | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| HERRINGTON, William | Private | Ottawa | Jan 1, 1862 | Tr. to V.R.C., Sep 15, 1863 |
| HINMAN, Charles P | Private | Ottawa | Jan 1, 1862 | Deserted Aug 31, 1862 |
| HORNER, John W | Veteran | Ottawa | Feb 1, 1864 | Disch, July 21, 1864; wounds |
| HORNER, John | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| HUBER, Henry | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| HUFF, William | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| HUNT, Garrison | Private | Ottawa | Jan 1, 1862 | Died Aug 10, 1863 |
| HUNTSMAN, Charles E | Private | Ottawa | Jan 1, 1862 | Died, Chicago, Mar 17, 1862 |
| HUTTON, Edward R | Corporal | Ottawa | Jan 1, 1862 | Disch, Dec 4, 1863; wounds |
| JACOBSON, Jacob | Veteran | Ottawa | Mar 7, 1864 | Mustered out July 22, 1865 |
| JACOBSON, Jacob | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| JOHNSON, Benjamin | Private | Ottawa | Jan 1, 1862 | Disch, Aug 10, 1862; wounds |
| JOHNSON, Ole J | Corporal | Ottawa | Jan 1, 1862 | Deserted Apr 18, 1862 |
| JOHNSON, William | D&S Recruit | Hurricane | Nov 30, 1864 | Sub. Never joined Co. |
| JONES, Patrick | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| JONES, Patrick | Corporal | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| KAPSEL, Louis | Private | Ottawa | Jan 1, 1862 | Deserted Apr 3, 1862 |
| KEISER, Frank | Private | Ottawa | Jan 1, 1862 | Deserted May 23, 1862 |
| KELLY, Charles | D&S Recruit | Millbrook | Dec 2, 1864 | Sub. Never joined Co. |
| KIMBERLIN, Sherman B | Private | Ottawa | Jan 1, 1862 | Discharged Dec 30, 1864 |
| KING, Francis G | Captain | Ottawa | July 1, 1863 | Mustered out Nov 11, 1864 |
| KING, Francis G | 1st Lt. | Ottawa | Not must'r'd. | Commission canceled |
| KING, Francis G | Sergeant | Ottawa | Jan 1, 1862 | Promoted 1st Lieutenant [Nov 15, 1862] |
| KRIZE, Jacob | D&S Recruit | Worth | Dec 6, 1864 | Died, Louisville, Feb 28, 1865 |
| KROUSE, Solomon | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| LARSON, John | Private | Ottawa | Jan 1, 1862 | Disch, Nov 24, 1863; disabil. |
| LEE, James | D&S Recruit | Penn | Dec 6, 1864 | Never joined Company |
| LETZ, Augustus M | Private | Ottawa | Jan 1, 1862 | Died Dec 29, 1863; bad treatment while pris. of war |
| LINES, Sylvester | D&S Recruit | Rosefield | Nov 17, 1864 | Mustered out July 22, 1865 |
| LONG, Isaac | D&S Recruit | --- | --- | Never joined Company. MO Jun 10, 1865 |
| LOWN, James | D&S Recruit | Indian Point | Nov 17, 1864 | Mustered out July 22, 1865 |
| MATHENY, William H | D&S Recruit | Wabash | Dec 6, 1864 | Sub. MO July 22, 1865 |
| MAY, Carser R | 2nd Lt. | Chicago | --- | Resigned Nov 27, 1862 |
| McCORMICK, Bruce | 1st Serg. | Ottawa | Jan 1, 1862 | MO July 22, 1865 as private |
| McCORMICK, William | Private | Ottawa | Jan 1, 1862 | Disch, Nov 11, 1862; disabil. |
| McGOWAN, Michael | Private | Ottawa | Jan 1, 1862 | Trans. to Co. K, Feb 1, 1862 |
| MILLER, Edward F | Veteran | Ottawa | Feb 1, 1864 | Died July 22, 1864; wounds |
| MILLER, Edward F | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| MILLER, John C | Private | Ottawa | Jan 1, 1862 | Discharged Dec 30, 1864 |
| MOORE, George | Veteran | Reading | Feb 1, 1864 | Mustered out July 22, 1865 |
| MOORE, George | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| MORRISON, Matthew | Private | Ottawa | Jan 1, 1862 | Discharged Dec 30, 1864 |
| MALLABY, William | Veteran | Ottawa | Jan 6, 1864 | MO July 22, 1865 as Serg't. |
| MULLABY, William H | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| MULLEN, John W | Veteran | Ottawa | Mar 7, 1864 | MO July 22, 1865 as 1st Sgt. |
| MULLEN, John | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| NEUTSON, Seward | Veteran | Ottawa | Mar 7, 1864 | Mustered out July 22, 1865 |
| NEUTSON, Seward | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| NEWTON, Goodman | Veteran | Ottawa | Mar 7, 1864 | Mustered out July 22, 1865 |
| NEWTON, Goodmond | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| NEWTON, Newton | Private | Ottawa | Jan 1, 1862 | Disch, Aug 21, 1862; disabil. |
| NEWTSON, Nute | Recruit | --- | --- | Mustered out July 22, 1865 |
| NORTHENER, William | D&S Recruit | Bowling Green | Nov 30, 1864 | Never joined Company |
| NORTON, Warren H | Captain | --- | Not must'r'd. | Commission canceled |
| O'BRIEN, John | D&S Recruit | Hall | Dec 6, 1864 | Sub. Never joined Co. |
| OLESON, Barney | Private | Ottawa | Jan 1, 1862 | Mustered out Mar 25, 1865 |
| OMALEY, John | Private | Ottawa | Jan 1, 1862 | Killed at Jackson, Miss., July 12, 1863 |
| ORTON, Jeremiah | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| PALMER, William B | 2nd Lt. | Ottawa | Mar 29, 1865 | Mustered out July 22, 1865 |
| PALMER, William B | Veteran | Ottawa | Feb 1, 1864 | Promoted 2d Lieutenant [Nov 11, 1864] |
| PALMER, William B | Corporal | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| PERRY, John | Private | Ottawa | Jan 1, 1862 | Disch, July 9, 1862; disabil. |
| PETERSON, Ares | Private | Ottawa | Jan 1, 1862 | Disch, Feb 27, 1863; disabil. |
| PHELPS, Martin | Private | Ottawa | Jan 1, 1862 | Disch, Aug 1, 1862; disabil. |
| PORTER, George W | Private | Ottawa | Jan 1, 1862 | Corp. Disch, Feb 10, 1864, to accept prom. in Col. Reg. |
| POUNDSTONE, George C | Private | Ottawa | Jan 1, 1862 | Corp. Died July 23, 1863; wounds |
| REED, Henry | Veteran | Ottawa | Feb 1, 1864 | MO July 22, 1865 as Serg't. |
| REED, Henry | Musician | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| REEDER, Thomas | D&S Recruit | Peoria | Dec 6, 1864 | Sub. Never joined Co. |
| REINERSON, Andrew | Private | Ottawa | Jan 1, 1862 | Mustered out Mar 25, 1865 |
| RICE, Robert | D&S Recruit | Richwood | Nov 17, 1864 | Mustered out July 22, 1865 |
| RIDDLE, Henry | Recruit | Earlville | Apr 27, 1864 | Mustered out July 22, 1865 |
| SHATTUCK, Isaac | Private | Ottawa | Jan 1, 1862 | Disch, Apr 22, 1862; disabil. |
| SHEPARD, John | Private | Ottawa | Jan 1, 1862 | Died at Pittsburg, Pa., Apr 21, 1862 |
| SHIP, Joseph | Private | Ottawa | Jan 1, 1862 | Disch, Aug 1, 1862; disabil. |
| SHOUSE, Charles B | 1st Lt. | Ottawa | Nov 11, 1864 | Mustered out July 22, 1865 |
| SHOUSE, Charles B | Veteran | Ottawa | Feb 1, 1864 | Pro. 1st Serg't, then 1st Lt. [Nov 11, 1864] |
| SHOUSE, Charles B | Corporal | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| SINGER, Elisha S | Veteran | Ottawa | Feb 1, 1864 | MO July 22, 1865 as Serg't. |
| SINGER, Elisha S | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| SINGER, Thomas B | Private | Ottawa | Jan 1, 1862 | Disch, Sep 6, 1862; disabil. |
| SKINNER, Joseph E | Captain | Ottawa | Jan 1, 1862 | Resigned Nov 15, 1862 |
| SKINNER, Robert E | Private | Ottawa | Jan 1, 1862 | Disch, Apr 22, 1862; disabil. |
| SMALLEN, Christopher | Private | Ottawa | Jan 1, 1862 | Died Oct 6, 1862; wounds |
| SMALLEN, Patrick | Private | Ottawa | Jan 1, 1862 | Disch, Sep 5, 1862; disabil. |
| SNIDER, John | D&S Recruit | Big Spring | Dec 5, 1864 | Mustered out July 22, 1865 |
| STRAND, Ole | Private | Ottawa | Jan 1, 1862 | Disch, Nov 11, 1862; disabil. |
| STUMPH, Elisha H | Captain | Ottawa | Mar 29, 1865 | Promoted Major |
| STUMPH, Elisha H | 1st Lt. | Ottawa | Apr 27, 1864 | Promoted [Nov 11, 1864] |
| STUMPH, Elisha H | 2nd Lt. | Ottawa | July 1, 1863 | Promoted [Apr 13, 1864] |
| STUMPH, Elisha H | Sergeant | Ottawa | Jan 1, 1862 | Promoted 2d Lieutenant [May 14, 1863] |
| STUMPH, Thomas R | Private | Ottawa | Jan 1, 1862 | Trans. to Co. B, Jan 5, 1862 |
| STUMPH, Wynn | Recruit | Aux Sable | Feb 16, 1865 | Mustered out July 22, 1865 |
| TAMBLING, Villeroy A | Veteran | Ottawa | May 25, 1864 | 1st Serg. Disch, Nov 1, 1864, to accept prom. as 2d Lt., Co. G, 16th U.S.C.I. |
| TAMBLING, Villeroy A | Sergeant | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| THOMAS, David | D&S Recruit | Hollis | Dec 7, 1864 | Sub. MO July 22, 1865 |
| TIMONS, James | Recruit | Rutland | Feb 21, 1865 | Mustered out July 22, 1865 |
| TODD, David H | Veteran | Ottawa | Feb 1, 1864 | Deserted Apr 29, 1864 |
| TODD, David H | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| TRUMBULL, George | Private | Ottawa | Jan 1, 1862 | Died Oct 7, 1862; wounds |
| TRUMBULL, Oliver | Private | Ottawa | Jan 1, 1862 | Supposed MO Nov 11, 1864 |
| TUCKER, John E | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| WATSON, Henry | Recruit | Chicago | --- | Deserted Sep 6, 1862 |
| WHEATLAND, Albert | Veteran | Ottawa | Feb 1, 1864 | Mustered out July 22, 1865 |
| WHEATLAND, Albert | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| WILLIAMS, Lorenzo D | D&S Recruit | --- | --- | Mustered out July 22, 1865 |
| WINER, Philip | Private | Ottawa | Jan 1, 1862 | Deserted Apr 3, 1862 |
| WING, Charles E | Sergeant | Ottawa | Jan 1, 1862 | Disch, Oct 20, 1862; disabil. |
| WOLF, Christopher | Recruit | Chicago | --- | Disch, Jun 12, 1862; disabil. |
| WOODRUFF, Charles H | Recruit | Earlville | Apr 27, 1864 | Mustered out Jun 12, 1865 |
| WOODRUFF, Warren W | Veteran | Ottawa | Jan 6, 1864 | Deserted Feb 2, 1865 |
| WOODRUFF, Warren W | Private | Ottawa | Jan 1, 1862 | Re-enlisted as Veteran |
| WRIGHT, David | D&S Recruit | Mendon | Sep 17, 1864 | Never joined Company |
| WRIGHT, Hiram | Wagoner | Ottawa | Jan 1, 1862 | Deserted Apr 18, 1862 |
| YOST, George | Recruit | Aux Sable | Feb 16, 1865 | Mustered out July 11, 1865 |
| YOST, Thomas | Recruit | Aux Sable | Feb 16, 1865 | Mustered out July 22, 1865 |
