- Eighteenth Ohio Independent Battery of Ohio Volunteer Artillery
- SEE 18th Ohio Independent Battery of Ohio Volunteer Artillery»
- Eighteenth Regiment Ohio Volunteer Infantry (Three Months Service)
- SEE 18th Regiment Ohio Volunteer Infantry (Three Months Service)»
- Eighth Ohio Battery (Ohio National Guard)
- SEE 8th Ohio Battery (Ohio National Guard)»
- Eighth Ohio Independent Battery of Ohio Volunteer Artillery
- SEE 8th Ohio Independent Battery of Ohio Volunteer Artillery»
- Eighth Regiment Ohio Volunteer Infantry
- SEE 8th Regiment Ohio Volunteer Infantry (Three Months Service)»
- Eighth Regiment Ohio Volunteer Militia
- SEE 8th Regiment Ohio Volunteer Militia»
- Eighth Regiment United States Veteran Volunteer Infantry Companies A, C, and E
- SEE 8th Regiment United States Veteran Volunteer Infantry Companies A, C, and E»
- Eighty-Eighth Regiment Ohio Volunteer Infantry (Three Months Service)
- SEE 88th Regiment Ohio Volunteer Infantry (Three Months Service)»
- Eighty-Eighth Regiment Ohio Volunteer Infantry (Three Years Service)
- SEE 88th Regiment Ohio Volunteer Infantry (Three Years Service)»
- Eighty-fifth Regiment Ohio Volunteer Infantry
- SEE 85th Regiment Ohio Volunteer Infantry»