1) Mcculough, David G, 1987 The Johnstown Flood, 2nd ed. New York: Simon and Schuster.
2) Muson, Howard, 1989 The Triumph of the American Spirit, Johnstown, Pennsylvania Lanham, Maryland..
3) O’Connor, Richard Johnstown, 1957 The Day the Dam Broke, Philadelphia: Lippincott.
4) Shappee, Nathan D 1940 A History of Johnstown and the Great Flood of 1889: A Study of Disaster and Rehabilitation, Pittsburgh 1940.
