The 43rd Ohio Volunteer Infantry was organized at Camp Andrews in Mount Vernon, Ohio from September 28, 1861 through February 1, 1862. The regiment mustered in for 3 years service under the command of Colonel Joseph L. Kirby Smith. After his death from wounds at the second Battle of Corinth in 1862, Wager Swayne was promoted to Colonel of the regiment, serving until he lost a leg in South Carolina in February 1865.
Col. Horace Park commanded the regiment until all mustered out after the end of the war.
The 43rd OVI served in the Army of the Mississippi’s “Ohio Brigade,” under Col. John Fuller, with the 27th, 39th, and 63rd Ohio regiments. The 43rd transferred to the Army of the Tennessee in late 1862. In late 1863, the majority of the regiment re-enlisted for 3 years.
Battle of Island No. 10, Siege of Corinth, Battle of Iuka, Second Battle of Corinth, Atlanta Campaign, Battle of Resaca, Battle of Dallas, Battle of New Hope Church, Battle of Allatoona, Battle of Kennesaw Mountain, Battle of Atlanta, Siege of Atlanta, Battle of Jonesboro, Battle of Lovejoy’s Station, Sherman’s March to the Sea, Carolinas Campaign, Battle of Bentonville
The 43rd Ohio Infantry lost a total of 256 men; 4 officers and 61 enlisted men killed or mortally wounded, 2 officers and 189 enlisted men died of disease. The regiment mustered out of service at Louisville, Kentucky on July 13, 1865.