is David McCullough or Nick Hornby an American author?
David McCullough David Gaub McCullough ( ; born July 7, 1933) is an American author, narrator, historian, and lecturer. He is a two-time winner of the Pulitzer Prize and the National Book Award and a recipient of the Presidential Medal of Freedom, the United States' highest civilian award.
David Paul Kuhn David Paul Kuhn is an American writer, political analyst and author of, most recently, the political novel "What Makes It Worthy".