8th Ohio's National Flag
Photo Courtesy of Ohio Historical Society
| Colonel | H. G. DePuy |
| Lt Col | Charles A. Park |
| Major | Franklin Sawyer |
| Surgeon | Benjamin Tappan |
| Asst Surgeon | Samuel Sexton |
| Chaplain | Lyman N. Freeman |
| Adjutant | Joseph R. Swigart |
| Quartermaster | Herman Ruess |
| Company A | Company F |
| Company B | Company G |
| Company C | Company H |
| Company D | Company I |
| Company E | Company K |
| Worthington, Virginia | 1 September 1861 |
| Romney, West Virginia | 24 September 1861 |
| Wire Bridge, Virginia | 29 December 1861 |
| Antietam (Sharpsburg), Maryland | 17 September 1862 |
| Fredericksburg, Virginia | 13 December 1862 |
| Chancellorsville, Virginia | 1-3 May 1863 |
| Gettysburg, Pennsylvania | 1-3 July 1863 |
| White Plains, Virginia | 15 July 1863 |
| Mine Run, Virginia | 27 November 1863 |
| Wilderness, Virginia | 5-6 May 1864 |
| Spotsylvania Court House, Virginia | 8-24 May 1864 |
| North Anna River, Virginia | 28 May 1864 |
| Cold Harbor, Virginia | 3-6 June 1864 |
| Petersburg, Virginia | 15-19 1864 |