TRIBAL · OR · 1855-present
Confederated Tribes of the Umatilla Indian Reservation
Confederated Tribes of the Umatilla Indian Reservation (tribal nation) · Oregon
Background
Confederated Tribes of the Umatilla Indian Reservation occupied the Confederated Tribes of the Umatilla Indian Reservation (tribal nation) office in Oregon for 171 years (1855–present). Currently in office.
Auto-synthesized summary from Officium's indexed fields (tenure, predecessor / successor chain, career arc, FEC matches). Treat as derived metadata, not primary source.