Complex sentence: The Betrayal of the Five Civilized Tribes was finally published in 1940, after the director of the University of Oklahoma Press, Joseph A. Brandt, moved to the Princeton University Press, and published the book there.
Split into simpler sentences: The Betrayal of the Five Civilized Tribes was finally published in 1940. The former director of the University of Oklahoma Press, Joseph A. Brandt, moved to the Princeton University Press and published the book there.