Alphabetical by Last Name
M.D. O’Brien
Patrick O'Brien
Gerald P. O’Driscoll
Dennis O’Keeffe
Michael Oakeshott
Caren S. Oberg
Old Testament (Various Authors)
William Abbott Oldfather
Henry Olsen
Mancur Lloyd Olson Jr.
Peter S. Onuf
Franz Oppenheimer
Rev. William Edwin Orchard
Origen
Vincent Ostrom
James Otis
Richard Overton
Ovid
John Owen