Edwin S. Porter

Historical marker location:

Connellsville, Pennsylvania

( Marker is at the intersection of South Pittsburgh Street and East Fairview Avenue, on the right when traveling north on South Pittsburgh Street.)

Marker installed: 1992

(1869-1941).

Pennsylvania was the site of the deadliest nuclear accident in U.S. history. In 1979, a partial meltdown occurred at the Three Mile Island nuclear power plant in Harrisburg, Pennsylvania.