| cmu.edu | Oil Creek State Park Trail |
| carnegielibrary.org | Pennsylvania Department |
| pavisnet.com | Pennsylvania Facts Sheet |
| rootsweb.com | Pennsylvania Dutch Family History, Genealogy, Culture And Life |
| soldiersandsailorshall.org | Soldiers & Sailors - Pittsburgh, Pennsylvania |
| schuylkillriver.org | The Schuylkill River Heritage Corridor |
| photoantiquities.org | Photo Antiquities Museum of Photographic History |
| lhva.org | Lackawanna Heritage Valley Authority |
| conservatory.org | Phipps Conservatory and Botanical Gardens |
| explorepahistory.com | Explore PA History |
United States , California , Culver City