You're going to need dates, and states.Ball park dates - ie within a 10 year range will even get you farther than nothing.
It's likely she married a doctor and not an indian medicine man. It was very looked down on for whites to marry indians even at the turn of the 20th century.
I had one relative who when told he had some indian in his blood, on his wedding day back in the 1930's, left the town and never came back. He didn't even put his shoes on. It was too much of a disgrace, at that time.