David McCullough is an acclaimed author, teacher, and noted historian. A two-time winner of the Pulitzer Prize, for his biographies Truman and John Adams, McCullough pens impeccably researched documentaries that are vivid, thought-provoking, and compassionate. The Johnstown Flood examines one of the worst disasters in our nation's history-a catastrophe and scandal that took the lives of 2,209 people in southwestern Pennsylvania in 1889.