Through the Johnstown Flood: By A Survivor by Rev. David Beale — Published in 1890, this book is widely considered the best memoir of the flood by someone who experienced it. Princeton has made the title available in its online archive, and it is downloadable in a variety of formats suitable for e-readers and tablets.
Statements of Pennsylvania Railroad employees — The testimony of PRR employees was collected by John H. Hampton at the request of Superintendent Robert Pitcairn, beginning July 15, 1889. The investigators’ goal was to determine if the PRR was liable in any way for losses related to the disaster, and to prepare a defense against possible legal actions. The testimony has been placed online by the National Park Service.
A Walking Tour of Downtown Johnstown — This online tour of the National Historic District of Downtown Johnstown includes information about the district’s most important flood-surviving buildings, as well as historic and contemporary photography of them.