The Legend of Tom Threepersons or Three Persons was discussed not long ago, sorry I'm not sure which forum it was in but it seems there were two different Tom Threepersons/Three Persons and their legends have co-mingled. Some additional reading about the men involved.
Tom Threepersons
The Book Mine Set: Reader's Diary #451- Yvonne Trainer: Tom Three Persons
Tom Threepersons A tale of two Indians - Family, Friends, Firearms
Both prove to be interesting men from the turn of the 19th century.

D R