Geoffrey C. Ward, historian and screenwriter, wrote the script for The Vietnam War series and is the author of nineteen books, including A First-Class Temperament: The Emergence of Franklin Roosevelt, which won the National Book Critics Circle Award and the Francis Parkman Prize, and was a finalist for the Pulitzer Prize. He has written or cowritten many documentary films, including The War, The Civil War, Baseball, The West, Mark Twain, Not for Ourselves Alone, and Jazz.