The battery was attached to Army of Kentucky, Department of the Ohio, to December 1862.
Artillery, 2nd Division, Army of Kentucky, Department of the Ohio, to January 1863.
District of Central Kentucky, Department of the Ohio, to June 1863.
2nd Brigade, 4th Division, XXIII Corps, Army of the Ohio, to July 1863.
2nd Brigade, 1st Division, XXIII Corps, to August 1863.
Reserve Artillery, XXIII Corps, to January 1864.
Artillery, 2nd Division, XXIII Corps, to February 1865.
Artillery, 2nd Division, XXIII Corps, Department of North Carolina, to June 1865.
The 19th Ohio Battery mustered out of service at Salisbury, North Carolina, on June 28, 1865.
Pursuit of Morgan from Somerset, Ky., to Steubenville, Ohio, July 5–29.
Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church, and Allatoona Hills May 25-June 5.
Movement to North Carolina via Washington, D.C., January 15–22.
The battery lost a total of 9 enlisted men during service; 2 killed and 7 died due to disease.