"PHMC Historical Markers Search". Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Archived from the original(Searchable database) on March 21, 2016. Retrieved 2014-01-25.
web.archive.org
"PHMC Historical Markers Search". Pennsylvania Historical and Museum Commission. Commonwealth of Pennsylvania. Archived from the original(Searchable database) on March 21, 2016. Retrieved 2014-01-25.