Jim Thrope Wikipedia.
Well I just learned something new. I assume you are from Ok. My family was good friends with a Ponca man from OK.
I believe Thrope was Sac & Fox...mostly.
Yes, I live in OK...Like Thrope I had great aunts and uncles that went to Indian Schools..and that ended up working at them also. Mostly at Chilocco Indian School...North of Ponca City, OK.
FWIW-