That's a great painting. Not historically accurate at all but a good piece of art. My Dad's side of the family has enrolled Choctaw members in SE Oklahoma. I heard Choctaw spoken a lot when I was little but paid no attention to it, but I understand some of it still, plus I got the Choctaw dictionary. Pashi means hair and itula means hanging. It's Louisiana so is there Spanish moss in that place? Pashiitula is what you would call that. I'm seein somethin that ponche means place, something you would call a place. So maybe Ponchapashiitula, place of the hanging hair (spanish moss in the trees) which could be anglicized to Ponchatoula, place of hanging.