History & local legend
The house once standing at 1129 Ridge Avenue on Pittsburgh’s North Side became famous in ghost literature as the Congelier house. A 1979 account described a jealous wife killing her husband, a doctor conducting horrifying experiments in the basement, and Thomas Edison visiting to test a device for communicating with the dead.
Historian David Rotenstein traced the address through property records, newspapers and family history and found a different story. The building was a narrow brick rowhouse associated with the Cancelliere family. On November 14, 1927, an explosion at nearby gas-storage tanks shattered a laundry-room window and killed Mary Cancelliere with flying glass.
The house survived that disaster for roughly four more decades before demolition. Newspaper errors in the family name and later storytelling helped turn a real death into the elaborate Congelier legend. The haunting’s sinister mansion and Edison visit belong to that later narrative, while Mary and the rowhouse are part of the address’s recorded history.
