| Camera Maker | Canon | Camera Model | Canon EOS-1Ds Mark III |
| Aperture | f/2.8 | Exposure Value | 0 EV |
| Exposure Program | Manual | Exposure Time | 1/800 sec |
| Flash | No Flash | Focal Length | 58 mm |
| ISO | 400 | Metering Mode | Pattern |
| Date/Time | 2011:10:20 11:36:31 | Resolution Unit | Inch |
| X Resolution | 240 dots per ResolutionUnit | Y Resolution | 240 dots per ResolutionUnit |
| Compression | Jpeg Compression | Exposure Mode | 1 |
| Subject Distance | 2.25 | Keywords | Jane Johnson underground railroad Philadelphia attraction destination display education historic marker information landmark marker sign tourist attractive educating historical marker Historical Site Historical Sites info Passmore Williamson Philadelphia County Place of Interest Places of Interest road side Road sign Roadside signage The Liberation of Jane Johnson tour tourism tourist attraction Tourist Destination Tourist Destinations travel Travel Destination Travel Destinations William Still Pennsylvania appealing no people sightseeing text United States attract history nobody sightsee word daytime destinations displays historic markers landmarks Jason O. Watson / historical-markers.org markers signs tourists United States of America appeal color image educate historic outdoor vertical day historical markers road sides tourist attractions tours colour image historical outside day time PA day-time US words color images daylight outdoors USA verticals colour images natural light outsides U.S. U.S.A. historic site sign with text |
| Caption | THE LIBERATION OF JANE JOHNSON In 1855, an enslaved woman and her two sons found freedom, aided by abolitionists William Still, Passmore Williamson, and other Underground Railroad activists. They escaped from their Southern owner while being transported through Philadelphia and settled later in Boston. The incident, which occurred nearby, and WilliamsonÕs subsequent imprisonment and famous trial attracted national attention, further intensifying the North-South conflict. Pennsylvania Historical and Museum Commission, 2009 |