Jacob D. Cox-- Part 2: Battles in the East and West

After Fort Sumter, Jacob Cox joined the Union Army to help fulfill Onion's quota of troops.  On April 3, 1861, Cox was appointed a brigadier general of Ohio Volunteers by Governor William Dennison and commanded a training camp near Columbus and later his command fought under Gen. George McClellan in what became West Virginia.

Later, posted to Washington, D.C., it took part in the Antietam Campaign and fought at the Battle of South Mountain September 14, 1862, where corps commander Jesse L. Reno was killed.  Cox took command of the corps and was at the Battle of Antietam.

After that, he commanded several military districts in the North.  Back in the field again, he participated in Sherman's Atlanta Campaign commanding the 3rd Division of the XIII Corps under Gen. John B. Schofield of the Army of the Ohio.  The 3rd Division was very involved in the fighting at the Battle of Utoy Creek on August 6, 1864.

--Old Secesh