New to forum and I have a question about Ohio units. While doing some genealogy I came across an ancestor who was part of the Ohio Veterans Volunteer Infantry (Co. E 47th OVVI). I am familiar with the term OVI (Ohio Volunteer Infantry), but had never seen OVVI. Can somone explain the difference between OVI and OVVI? At first I thought it had to do with the three year units and the re-enlistment of the unit after three years (thus they were veterans...that was my guess anyway). So I thought I'd ask the pros. Thx in advance!