History & local legend
The cemetery at London Tract Meeting House, near Landenberg in Chester County, is home to the legend of the Ticking Tomb. The story begins during Charles Mason and Jeremiah Dixon’s survey of the Pennsylvania–Maryland boundary in the 1760s. A child supposedly wandered into their camp and swallowed Mason’s pocket watch. Instead of stopping, the watch continued to tick inside him.
The boy grew up to repair clocks, according to the local tale, and carried that impossible heartbeat throughout his life. After his burial, visitors claimed they could still hear it through the stone of his grave.
In a 2011 recollection, local author Dianne K. Salerni remembered hearing the story as a schoolgirl. Her teachers offered another explanation for the sound: a spring running beneath the grave. She also noted that later visitors had reported silence where earlier generations remembered ticking.
