He initially served as Captain of Company I, 15th Regiment, Ohio Volunteer Infantry from April 20, 1861 to August 28. 1861. He reenlisted as Captain of Company D, 15th Regiment, Ohio Volunteer Infantry on September 12, 1861 and resigned on May 12, 1862. He reenlisted as Captain of Company F, 101st Regiment, Ohio Volunteer Infantry on July 30, 1862.Promoted to Major with Field and Staff, 101st Regiment on October 14, 1862. Promoted to Colonel on December 26, 1862 after the Battle of Stone River, Tennessee. Placed in command of First Brigade, First Division, Fourth Army Corps on June 10, 1864. Appointed as Brevet Brigadier General on January 12, 1865. Mustered out on June 12, 1865.
He initially served as Captain of Company I, 15th Regiment, Ohio Volunteer Infantry from April 20, 1861 to August 28. 1861. He reenlisted as Captain of Company D, 15th Regiment, Ohio Volunteer Infantry on September 12, 1861 and resigned on May 12, 1862. He reenlisted as Captain of Company F, 101st Regiment, Ohio Volunteer Infantry on July 30, 1862.Promoted to Major with Field and Staff, 101st Regiment on October 14, 1862. Promoted to Colonel on December 26, 1862 after the Battle of Stone River, Tennessee. Placed in command of First Brigade, First Division, Fourth Army Corps on June 10, 1864. Appointed as Brevet Brigadier General on January 12, 1865. Mustered out on June 12, 1865.