Eighteenth Ohio Independent Battery of Ohio Volunteer Artillery October 24, 2022October 20, 2022 1862–1865
Eighteenth Regiment Ohio Volunteer Infantry (Three Months Service) October 24, 2022October 20, 2022 1861
Eighteenth Regiment Ohio Volunteer Infantry (Three Years) (First Organization) October 24, 2022October 20, 2022
Eighteenth Regiment Ohio Volunteer Infantry (Three Years) (Second Organization) October 24, 2022October 20, 2022
Eighth Ohio Independent Battery of Ohio Volunteer Artillery October 24, 2022October 20, 2022 1862–1865