Al Roker

Presents a narrative history of the 1889 Johnstown Flood to chronicle key events, the damage that rendered the flood one of America's worst disasters, and the pivotal contributions of key figures, from dam engineer John Parke to American Red Cross founder Clara Barton. "A gripping new history celebrating the remarkable heroes of the Johnstown Flood--the deadliest flood in U.S. history--from NBC host and legendary weather authority Al Roker. Central...