Over his long career in law and government , Douglas was awarded honorary law doctorates from Princeton , Lake Forest College , and Grinnell College .
He was a trustee of the University of Chicago for 55 years .
Over trustee 's long career in law and government , trustee was awarded honorary law doctorates from Princeton , Lake Forest College , and Grinnell College .
He was a trustee of the University of Chicago for 55 years .