Not to butt in, laws were not always followed. I can give you an instance in Federal service My GGUncle was fourteen and did serve with his brother in the 127IL.Inf.for the entire the war as a musician. Likewise their father was to old lied about his age served was discharged for disability wounds recieved and reinlisted into another regiment and was discharged again for wounds recieved.I am reminded of the old adage,"Where there is a will there is a way."