66th Ohio National Colors
Photo Courtesy of Ohio Historical Society
Organized: Camp McArthur, Urbana, OH on 1 December 1861
Mustered Into Service
Mustered Out: 15 July 1865
| Middletown, VA (6 June 1862) | Kenesaw Mountain, GA (15 June 1864) |
| Port Republic, VA (9 June 1862) | Pine Hill, GA (15 June 1864) |
| Furrow’s Furnace, VA (10 June 1862) | Kenesaw Mountain, GA (16 June 1864) |
| Cedar Mountain, VA (9 August 1862) | Pine Hill, GA (16 June 1864) |
| Antietam, MD (17 September 1862) | Pine Knob, GA (16 June 1864) |
| Chancellorsville, VA (3 May 1863) | Pine Mountain, GA (16 June 1864) |
| Chancellorsville, VA (4 May 1863) | Kenesaw Mountain, GA (21 June 1864) |
| Gettysburg, PA (2 July 1863) | Kenesaw Mountain, GA (27 June 1864) |
| Gettysburg, PA (3 July 1863) | Near Kenesaw Mountain, GA (1 July 1864) |
| Ringgold, GA (26 November 1863) | Peach Tree Creek, GA (20 July 1864) |
| Ringgold, GA (27 November 1863) | Atlanta, GA (28 July 1864) |
| Taylor’s Ridge, GA (27 November 1863) | Near Chattahoochie River, GA (31 August 1864) |
| Caperton Ferry, WV (29 March 1864) | Madison, GA (19 November 1864) |
| Dallas, GA (25 May 1864) | Savannah, GA (19 December 1864) |
| Near Dallas, GA (25 May 1864) | Savannah, GA (20 December 1864) |
| Dallas, GA (27 May 1864) | Lancaster C. H., SC (17 February 1865) |
|
Goldsboro,
NC (6 April 1865)
|
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| Company A | Company F |
| Company B | Company G |
| Company C | Company H |
| Company D | Company I |
| Company E | Company K |