166th Regiment (4th Ohio) Infantry

Regimental Staff and Officers

Sanitary Corps

Headquarters Company

Supply Company

Company A

Company B

Company C

Company D

Company E

Company F

Company G

Company H

Company I

Company K

Company L

Company M

Machine Gun Company

First Sergeant

Supply Sergeant

Mess Sergeant

Stable Sergeant

Sergeants

Corporals

Cooks

Saddler

Mechanics

Horseshoer

Buglers

Privates, 1st class

Privates

150th Machine Gun Battalion
(Companies 1, 2, and 3, 2nd Wisconsin Infantry)

Headquarters Company

Medical Corps

1st Company

2nd Company

3rd Company