PA Historical Sites
Pennsylvania Trail of History®, http://www.phmc.state.pa.us/bhsm/trailofhistory.asp?secid=14
The State Museum of Pennsylvania, http://www.statemuseumpa.org
Pennsylvania Trail of History®, http://www.phmc.state.pa.us/bhsm/trailofhistory.asp?secid=14
The State Museum of Pennsylvania, http://www.statemuseumpa.org