Chester County, PA Tornado, Jul 1877 http://www3.gendisasters.com/pennsylvania/8511/chester-pa-tornado-jul-1877 Transcription from the book "A Full Description of the Great Tornado in Chester County, PA, 1877" - the story of the tornado that struck the Chester County PA Area on July 1, 1877. More Pennsylvania Disasters http://www3.gendisasters.com/category/united-states/pennsylvania