12th Ohio Independent Battery Light Artillery.

Entered service as Company "G," 25th Ohio Volunteer Infantry, July 27, 1861. Ordered to West Virginia July 29. Attached to 1st Brigade, Army of Occupation West Virginia, to November, 1861. Milroy's Cheat Mountain District, West Virginia, to March, 1862. Company permanently detached from 25th Ohio Infantry as 12th Ohio Battery, March 17, 1862. Milroy's Independent Brigade, Dept. of the Mountains, to June, 1862. Milroy's Independent Brigade, 1st Army Corps, Army of Virginia, to September, 1862. Artillery, 2nd Division, 11th Army Corps, Army of the Potomac, to January, 1863. Provost Guard, Army of the Potomac, to May, 1863. Unattached, Artillery Reserve, Army of the Potomac, to June, 1863. Camp Barry, Defences of Washington, D.C., 22nd Army Corps, to September, 1863. Artillery Brigade, 11th Army Corps, Army of the Cumberland, to December, 1863. 2nd Division, Artillery Reserve, Dept. of the Cumberland, to April, 1864. Garrison Artillery, Murfreesboro, Tenn., Dept. of the Cumberland, to July, 1864. 1st Brigade, Defences Nashville & Chattanooga Railroad, Dept. of the Cumberland, to July, 1865.

SERVICE. – Duty along the Baltimore & Ohio Railroad from Grafton to the Ohio River till August 21, 1861. Moved to Cheat Mountain Summit August 21. Action at Cheat Mountain September 12-17. Cheat Mountain Pass September 14-15. Greenbrier October 3-4. Moved to Huttonsville November 25, and duty there till February 27, 1862. Expedition to Camp Baldwin December 11-13, 1861. Buffalo Mountain December 12-13. Raid to Huntersville December 31-January 5, 1862. At Elkwater till March. Expedition on the Seneca April 1-12. At Staunton to May 7. Battle of McDowell May 8. Franklin May 10-12. Battle of Cross Keys June 8. Pope's Campaign in Northern Virginia August 16-September 2. Fords of the Rappahannock August 21-23. Freeman's Ford and Hazel Run August 22. Battle of Groveton August 29. Battle of Bull Run August 30. Duty in the Defences of Washington, D.C., till December. Moved to Fredericksburg, Va., December 12-16. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Duty in the Defences of Washington, D.C., till September. Moved to Bridgeport, Ala., September 25-October 6. Garrison duty at Nashville, Tenn., till April, 1864, and at Murfreesboro, Tenn., till July, 1865. Defence of Murfreesboro December 5-12, 1864. Wilkinson's Pike December 7. Mustered out July 12, 1865.

Battery lost during service 3 Enlisted men killed and mortally wounded and 17 by disease. Total 20.

SOURCE: Frederick H. Dyer, A Compendium of the War of the 3, p. Rebellion, Part 1491-2