Martin Gunter

I am researching a family member, for a friend of mine. His name was, Martin Gunter. He was born is Tennessee, in about 1881. However, it is believed that, Martin Gunter was not his real name. It is said that, he adopted this name. It is also believed that, he was of Indian descent. If this man, is from your family line, I would appreciate the information. Thank you, ~Beth~